Difference between revisions of "PlayChessWithAWebCam"

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}}
 
}}
 
[[File:PlayChessWithAWebCam2019-10-26.png|800px|link=https://github.com/WolfgangFahl/play-chess-with-a-webcam]]
 
[[File:PlayChessWithAWebCam2019-10-26.png|800px|link=https://github.com/WolfgangFahl/play-chess-with-a-webcam]]
 +
{{:PlayChessWithAWebCam/Links}}
 
= Motivation =
 
= Motivation =
 
See {{Link|target=MagneticSensorChessBoard1987}} for the initial project of 1987.
 
See {{Link|target=MagneticSensorChessBoard1987}} for the initial project of 1987.
 
Time has moved on and the goals of the 1987 project can be achieved with less hardware and software in a more convenient manner these days.
 
Time has moved on and the goals of the 1987 project can be achieved with less hardware and software in a more convenient manner these days.
 +
== Usecases ==
 +
=== [https://github.com/WolfgangFahl/play-chess-with-a-webcam/issues/26 Play Chess With A Webcam] ===
 +
As a chess player
 +
given a physical board and a starting position in FEN notation and a webcam observing the board in a proper angle (e.g. from above)
 +
i want to play moves against an opponent that
 +
# might sit directly in front of me
 +
# might sit with a similar setup remotely in front of a physical board
 +
# might play using some other remote means of communication
 +
 +
so that
 +
my moves are recorded and transmitted with the option to
 +
# later analyze
 +
# immediately analyze and if allowed by the oponent take back moves
 +
If the oponent is not at the board I'll have to do his moves manually or later might use some kind of robot to do that for me ...
 +
 +
=== [https://github.com/WolfgangFahl/play-chess-with-a-webcam/issues/19 Detecting Moves by a WebCAM] ===
 +
As a chess player given a logical chess board setting in {{Link|target=FEN}} notation (e.g. [https://lichess.org/editor/rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR_w_KQkq_- starting FEN] that I have setup on my physical board being observed by a webcam in HD at e.g. 25 FPS
 +
I want to use a webcam to detect my next valid move e.g. e2-e4
 +
so that the logical board changes to the new FEN e.g. (https://lichess.org/editor/rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR_w_KQkq_-) and the
 +
move is available in {{Link|target=Algebraic_Notation}} e.g. e2-e4 e.g. to be transferred via {{Link|target=UCI|title=Universal_Chess_Interface}} or e.g. [https://lichess.org/NqEY44Lg lichess.org]
 +
 +
=== [https://github.com/WolfgangFahl/play-chess-with-a-webcam/issues/22 Process Chessgame webcam movie recording to create PGN] ===
 +
As a chess player
 +
 +
I want to process a given movie of a chessgame
 +
so that I get a {{Link|target=PGN|title=Portable Game Notation}} of the game's moves
 +
 +
see
 +
 +
https://chess.stackexchange.com/questions/4695/tools-for-automated-notation-webcam-movie-to-pgn/4699
  
 
= State of Project =
 
= State of Project =
−
As of 2019-10-29 version 0.0.1 has not been released yet. The state of the project is development/alpha.
+
As of 2019-12-28 version 0.0.1 has not been released yet. The state of the project is alpha and will be in beta in a few days.
  
 
There is already a lof of stuff to try out and to participate in this open source project.
 
There is already a lof of stuff to try out and to participate in this open source project.
  
−
There is a web frontend which you can try out e.g. with:
+
There is a web frontend which you can try out. Sample videos are available at
 +
https://github.com/SteinscheisserKarl/Chess-Testmedia/ which you can check out with:
 +
<source lang='bash' highlight="1-5">
 +
sudo apt-get install git-lfs
 +
git clone https://github.com/SteinscheisserKarl/Chess-Testmedia/
 +
cd Chess-Testmedia
 +
git lfs install
 +
git lfs pull
 +
</source>
 +
 
 
<source lang='bash'>
 
<source lang='bash'>
 +
git clone https://github.com/WolfgangFahl/play-chess-with-a-webcam
 +
cd play-chess-with-a-webcam
 
scripts/install
 
scripts/install
−
scripts/runweb --input testMedia/scholarsmate.avi --debug --warp '[[140,7],[506,10],[507,378],[136,373]]' --rotation 270
+
scripts/run --input ../Chess-Testmedia/TK_scholarsmate30.avi --event 'PlayChessWithaWebCam' --site 'Stuttgart-Germany' --black OTB1 --white OTB2 --round 1 --warp '[[81,18],[271,15],[268,203],[85,203]]' --rotation 90 --nomoves
 
</source>
 
</source>
−
to tryout the Scholars Mate example video
+
to tryout one of the Scholars Mate example video's in command line mode
 
[[File:ScholarsMateDebug2019-10-29.png|400px]]
 
[[File:ScholarsMateDebug2019-10-29.png|400px]]
 
or
 
or
Line 35: Line 77:
 
if there is a second webcam installed.
 
if there is a second webcam installed.
  
−
You migh want to click the corners of your chessboard to try out the warp function.
+
You might want to click the corners of your chessboard to try out the warp function manually or click the .
  
  
Line 45: Line 87:
  
 
If you'd like to experiment a bit you can run the tests which will show some debug output.
 
If you'd like to experiment a bit you can run the tests which will show some debug output.
−
== opencv tutorial stuff ==
 
−
Also in the opencvtutoral directory you'll find:
 
−
* colorcluster.py 
 
−
* histogramm.py
 
−
* hough_lines.py
 
−
=== hough lines ===
 
−
<source lang='bash'>
 
−
python3 opencvtutorial/hough_lines.py testMedia/chessBoard002.jpg
 
−
</source>
 
−
[[File:chessBoard002.jpg|300px]]
 
−
[[File:detectedProbabilisticHough2019-10-21.png|300px]]
 
−
[[File:detectedHough2019-10-21.png|300px]]
 
−
=== histogramm / colorcluster ===
 
−
[[File:chessBoard006.jpg|400px]]
 
−
<source lang='bash'>
 
−
python3 opencvtutorial/histogramm.py testMedia/chessBoard006.jpg
 
−
</source>
 
−
[[File:hsvhistogramm2019-10-21.jpg|400px]]
 
−
<source lang='bash' highlight="1">
 
−
python3 opencvtutorial/colorcluster.py testMedia/chessBoard006.jpg
 
−
Clusterization took 2.8 s for 1 channels
 
−
Clusterization took 4.5 s for 2 channels
 
−
Clusterization took 6.7 s for 3 channels
 
−
</source>
 
−
[[File:colorCluster2019-10-21.jpg|800px]]
 
  
 
= Installation =
 
= Installation =
Line 118: Line 135:
  
 
= Usage =
 
= Usage =
 +
== WebUI ==
 +
=== Menu ===
 +
<html><link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet"></html>
 +
{{MdiIcon|icon=home|color=blue|size=36}}
 +
{{MdiIcon|icon=description|color=blue|size=36|title=Play Chess With A WebCam Wiki Page}}
 +
{{MdiIcon|icon=save|color=blue|size=36}}
 +
{{MdiIcon|icon=folder|color=blue|size=36|title=Show games folder}}
 +
{{MdiIcon|icon=videocam|color=blue|size=36|title=record video}}
 +
{{MdiIcon|icon=camera_alt|color=blue|size=36|title=take still picture}}
 +
{{MdiIcon|icon=bug_report|color=blue|size=36|title=toggle debug mode}}
 +
{{MdiIcon|icon=crop|color=blue|size=36|title=auto find chess board}}
 +
{{MdiIcon|icon=keyboard_arrow_left|color=blue|size=36|title=take back move}}
 +
{{MdiIcon|icon=keyboard_arrow_right|color=blue|size=36|title=forward a move}}
 +
{{MdiIcon|icon=rotate_right|color=blue|size=36|title=rotate the video by 90 degrees}}
 +
{{MdiIcon|icon=play_arrow|color=blue|size=36|title=play/pause video}}
 +
 
== Command line usage ==
 
== Command line usage ==
 
<source lang='bash' highlight="1">
 
<source lang='bash' highlight="1">
Line 139: Line 172:
 
</source>
 
</source>
  
−
= Recording =
+
== Recording ==
−
== Still images ==
+
=== Still images ===
 
<source lang='bash'>
 
<source lang='bash'>
 
scripts/still
 
scripts/still
 
</source>
 
</source>
−
== Video of match ==
+
=== Video of match ===
 
<source lang='bash'>
 
<source lang='bash'>
 
scripts/record
 
scripts/record
 
</source>
 
</source>
 +
 +
= Example Sources =
 +
== OpenCV ==
 +
Also in the examples/opencv directory you'll find:
 +
* colorcluster.py 
 +
* histogramm.py
 +
* hough_lines.py
 +
* ...
 +
=== hough lines ===
 +
<source lang='bash'>
 +
python3 examples/opencv/hough_lines.py testMedia/chessBoard002.jpg
 +
</source>
 +
[[File:chessBoard002.jpg|300px]]
 +
[[File:detectedProbabilisticHough2019-10-21.png|300px]]
 +
[[File:detectedHough2019-10-21.png|300px]]
 +
=== histogramm / colorcluster ===
 +
[[File:chessBoard006.jpg|400px]]
 +
<source lang='bash'>
 +
python3 examples/opencv/histogramm.py testMedia/chessBoard006.jpg
 +
</source>
 +
[[File:hsvhistogramm2019-10-21.jpg|400px]]
 +
<source lang='bash' highlight="1">
 +
python3 examples/opencv/colorcluster.py testMedia/chessBoard006.jpg
 +
Clusterization took 2.8 s for 1 channels
 +
Clusterization took 4.5 s for 2 channels
 +
Clusterization took 6.7 s for 3 channels
 +
</source>
 +
[[File:colorCluster2019-10-21.jpg|800px]]
 +
 
= Testing =
 
= Testing =
 
<source lang='bash' hightlight="1">
 
<source lang='bash' hightlight="1">
 +
scripts/test
 
---------- coverage: platform darwin, python 3.7.4-final-0 -----------
 
---------- coverage: platform darwin, python 3.7.4-final-0 -----------
 
Name                        Stmts  Miss  Cover
 
Name                        Stmts  Miss  Cover
 
------------------------------------------------
 
------------------------------------------------
−
src/Args.py                    10      0  100%
+
src/Args.py                    10      7    30%
−
src/Board.py                    52     2   96%
+
src/Board.py                    79     5   94%
−
src/BoardDetector.py            27     0  100%
+
src/BoardDetector.py            53     1    98%
−
src/BoardFinder.py            186     12    94%
+
src/BoardFinder.py            185     12    94%
 
src/Cell.py                    10      3    70%
 
src/Cell.py                    10      3    70%
 
src/ChessCam.py                85    59    31%
 
src/ChessCam.py                85    59    31%
 +
src/Environment.py              19      0  100%
 
src/FPSCheck.py                17      0  100%
 
src/FPSCheck.py                17      0  100%
−
src/Field.py                    28     0  100%
+
src/Field.py                    98     1    99%
−
src/HelpTesting.py               8     0  100%
+
src/Game.py                    80    11    86%
−
src/InputManager.py            47     29    38%
+
src/Histogram.py               72     0  100%
−
src/JsonAbleMixin.py            27     7    74%
+
src/InputManager.py            41     29    29%
 +
src/JsonAbleMixin.py            32     7    78%
 
src/MovementDetector.py        55    40    27%
 
src/MovementDetector.py        55    40    27%
−
src/RunningStats.py            53     1   98%
+
src/RunningStats.py            61     4   93%
−
src/StateDetector.py          105     7    93%
+
src/StateDetector.py          102     7    93%
−
src/Video.py                  250    94   62%
+
src/Video.py                  275    101   63%
−
src/WebApp.py                  108     56   48%
+
src/WebApp.py                  175     84   52%
 
src/YamlAbleMixin.py            22      4    82%
 
src/YamlAbleMixin.py            22      4    82%
 +
src/ciede2000.py                88      9    90%
 
src/imutils/__init__.py          1      0  100%
 
src/imutils/__init__.py          1      0  100%
 
src/imutils/perspective.py      25      0  100%
 
src/imutils/perspective.py      25      0  100%
 
src/mathUtils.py                48      7    85%
 
src/mathUtils.py                48      7    85%
−
src/test_Board.py              42     3   93%
+
src/test_Args.py                16      0  100%
−
src/test_BoardDetector.py      60     0  100%
+
src/test_Board.py              99     8   92%
 +
src/test_BoardDetector.py      87     0  100%
 
src/test_ChessCam.py            4      0  100%
 
src/test_ChessCam.py            4      0  100%
−
src/test_Field.py              17     0  100%
+
src/test_Field.py              19     0  100%
 +
src/test_Game.py                48      0  100%
 +
src/test_Histogram.py          31      1    97%
 
src/test_OpenCV_version.py      6      0  100%
 
src/test_OpenCV_version.py      6      0  100%
 
src/test_RunningStats.py        35      0  100%
 
src/test_RunningStats.py        35      0  100%
−
src/test_StateDetector.py      13     0  100%
+
src/test_StateDetector.py      14     0  100%
−
src/test_Video.py              65     0  100%
+
src/test_Video.py              68     1    99%
−
src/test_Warp.py                35     0  100%
+
src/test_Warp.py                46     2    96%
−
src/test_findBoard.py          43     0  100%
+
src/test_findBoard.py          44     0  100%
 +
src/webchesscam.py              94    39    59%
 
------------------------------------------------
 
------------------------------------------------
−
TOTAL                        1484   324   78%
+
TOTAL                        2244   442   80%
  
−
========================== 28 passed, 2 warnings in 251.15s (0:04:11)  
+
================== 38 passed, 4 warnings in 94.81s (0:01:34)
 
</source>
 
</source>
  
Line 203: Line 273:
  
 
=== Code Structure ===
 
=== Code Structure ===
−
click classes to see source code at [https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src Play Chess With A WebCam github repository]
+
click classes to see source code at [https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc Play Chess With A WebCam github repository]
 
   <uml>
 
   <uml>
 
     hide circle
 
     hide circle
 
     left to right direction
 
     left to right direction
 +
package Field {
 +
 +
  note top of SquareKind: kind of Square.
 +
  class SquareKind [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/Field.py]] {
 +
    title(titles=["whitefield","blackfield","whitepiece","blackpiece"])
 +
  }
 +
 +
  class Channel [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/Field.py]] {
 +
    title(titles=["green","blue","red"])
 +
  }
 +
 +
 +
  note top of FieldState: the state of a field is a combination of the field color with a piece color + two empty field color options.
 +
  class FieldState [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/Field.py]] {
 +
    title(titles=["whiteempty","whiteonwhite","blackonwhite","blackempty","whiteonblack","blackonblack"])
 +
  }
 +
  
−
   note top of GameEngine: This class is used to change the game state using StateClass.
+
   note top of Grid: Grid Info in the region of interest.
−
   class GameEngine [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/GameEngine.py]] {
+
   class Grid [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/Field.py]] {
−
     __init__(argv)
+
    xstep(pXStep)
−
     mainLoop()
+
    split(pStep,parts)
−
     play()
+
     __init__(rois,xsteps,ysteps,safetyX=0,safetyY=0)
 +
    safeShift(value,safetyMargin)
 +
    dofs(roiIndex)
 +
     d()
 +
     shiftSafety(rx,ry)
 +
    ystep(pYStep)
 
   }
 
   }
  
−
   class FieldState [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/Field.py]] {
+
 
 +
  note top of FieldROI: a region of interest within the square image area of pixels represented by some pixels.
 +
   class FieldROI [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/Field.py]] {
 +
    __init__(field,grid,roiIndex,relPixelLambda)
 +
    pixelList()
 +
    analyze(image)
 +
    interPolate(rx,ry)
 
   }
 
   }
  
  
−
   note top of Field: a single Field of a chessboard as observed from a WebCam.
+
   note top of Field: a single Field of a chess board as observed from a WebCam.
−
   class Field [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/Field.py]] {
+
   class Field [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/Field.py]] {
−
    drawDebug(video,image,color,borderColor=(0,0,0))
 
 
     getColor()
 
     getColor()
 
     analyzeColor(image,hsv,distance=1,step=1)
 
     analyzeColor(image,hsv,distance=1,step=1)
Line 227: Line 324:
 
     getFieldState()
 
     getFieldState()
 
     __init__(board,row,col)
 
     __init__(board,row,col)
 +
    getRect()
 +
    drawDebug(video,image,detectedFieldState)
 
     hsv_to_rgb(h,s,v)
 
     hsv_to_rgb(h,s,v)
 
     getPiece()
 
     getPiece()
 +
    divideInROIs(grid,roiLambda)
 +
  }
 +
 +
}
 +
package detectstate {
 +
  class DetectState [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/detectstate.py]] {
 +
    invalidEnd()
 +
    validEnd()
 +
    check(validChanges,diffSum,diffSumDelta,meanFrameCount)
 +
    nextFrame()
 +
    __init__(validDiffSumTreshold,invalidDiffSumTreshold,diffSumDeltaTreshold,onPieceMoveDetected=None,onMoveDetected=None)
 
   }
 
   }
  
  
−
   note top of InputManager: manage the video input and supply frames.
+
   note top of DetectColorState: detect state from Color Distribution.
−
   class InputManager [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/InputManager.py]] {
+
   class DetectColorState [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/detectstate.py]] {
−
     __init__(argv)
+
     __init__(trapez)
−
     getFrame()
+
     squareState(fieldColorStats,tSquare,percent)
 +
    check(image,averageColors,drawDebug=False)
 +
    drawDebug()
 +
    inRange(stats,fs,percent)
 
   }
 
   }
  
−
   class RejectedMove [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/Board.py]] {
+
}
 +
package ciede2000 {
 +
}
 +
package Board {
 +
   class RejectedMove [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/Board.py]] {
 
     __init__(value)
 
     __init__(value)
 
     __str__()
 
     __str__()
Line 246: Line 363:
  
 
   note top of Board: This class is used to hold the state of a chessboard with pieces positions and the current player's color which player needs to play. It uses the python-chess library by default
 
   note top of Board: This class is used to hold the state of a chessboard with pieces positions and the current player's color which player needs to play. It uses the python-chess library by default
−
   class Board [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/Board.py]] {
+
   class Board [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/Board.py]] {
 
     fen()
 
     fen()
 
     setFEN(fen)
 
     setFEN(fen)
 
     piecesOfColor(color)
 
     piecesOfColor(color)
 
     setPgn(pgn)
 
     setPgn(pgn)
 +
    takeback()
 
     GetCellName(col,row)
 
     GetCellName(col,row)
 
     fieldStateCounts()
 
     fieldStateCounts()
 
     __init__(dominatorOffset=(0,-1))
 
     __init__(dominatorOffset=(0,-1))
 
     performMove(move)
 
     performMove(move)
 +
    getPgn()
 
     fieldAt(row,col)
 
     fieldAt(row,col)
 
     unicode()
 
     unicode()
−
     pgn()
+
     move(ucimove)
 +
  }
 +
 
 +
}
 +
package histogram {
 +
 
 +
  note top of Stats: Calculate Histogram statistics see https://math.stackexchange.com/questions/857566/how-to-get-the-standard-deviation-of-a-given-histogram-image
 +
  class Stats [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/histogram.py]] {
 +
    __init__(histindexed)
 +
    range(relFactor=1.0,minValue=0,maxValue=255)
 +
  }
 +
 
 +
 
 +
  note top of Histogram: Image Histogram.
 +
  class Histogram [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/histogram.py]] {
 +
    savefig(fig,filepath)
 +
    colorRangeWithFactor(rangeFactor)
 +
    plot()
 +
    save(filepath)
 +
    plotRow(ax1,ax2)
 +
    fix(value)
 +
    preparePlot(rows,cols,title='colorhistogram',fontsize=20)
 +
    __init__(image,histSize=256,histRange=(0,256))
 +
    showDebug()
 +
    colorMask(image,rangeFactor)
 +
    range(relFactor=1.0)
 +
    show()
 
   }
 
   }
  
−
   class Cell [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/Cell.py]] {
+
}
−
     __repr__()
+
package game {
−
     __init__(coords)
+
 
−
     GetCoords()
+
  note top of Game: keeps track of a games state in a JavaScript compatible way to exchange game State information.
 +
   class Game [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/game.py]] {
 +
     showDebug()
 +
     __init__(gameid)
 +
  }
 +
 
 +
 
 +
  note top of WebCamGame: keeps track of a webcam games state in a JavaScript compatible way to exchange game and webcam/board State information.
 +
  class WebCamGame [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/game.py]] {
 +
     checkEnvironment(env)
 +
    getWebCamGames(path)
 +
    save(path="games")
 +
    __init__(gameid)
 
   }
 
   }
  
  
 
   note top of Warp: holds the trapezoid points to be use for warping an image take from a peculiar angle.
 
   note top of Warp: holds the trapezoid points to be use for warping an image take from a peculiar angle.
−
   class Warp [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/WebApp.py]] {
+
   class Warp [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/game.py]] {
 +
    updatePoints()
 
     rotate(angle)
 
     rotate(angle)
 
     addPoint(px,py)
 
     addPoint(px,py)
−
     __init__(rotation=0,bgrColor=(0,255,0))
+
     __init__(pointList=[],rotation=0,bgrColor=(0,255,0))
 +
  }
 +
 
 +
}
 +
package Environment4Test {
 +
 
 +
  note top of Environment4Test: Test Environment.
 +
  class Environment4Test [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/Environment4Test.py]] {
 +
    loadFromImageInfo(webApp,imageInfo)
 +
    __init__()
 +
    getImage(num)
 +
    prepareFromImageInfo(imageInfo)
 +
    getImageWithVideo(num)
 
   }
 
   }
  
 +
}
 +
package WebApp {
  
 
   note top of WebApp: actual Play Chess with a WebCam Application - Flask calls are routed here.
 
   note top of WebApp: actual Play Chess with a WebCam Application - Flask calls are routed here.
−
   class WebApp [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/WebApp.py]] {
+
   class WebApp [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/WebApp.py]] {
 
     photo(path)
 
     photo(path)
 
     chessFEN(fen)
 
     chessFEN(fen)
 
     genVideo(video)
 
     genVideo(video)
−
     chessPgn(pgn,fen)
+
     __init__(args,logger=None)
−
     genVideoStreamed(video)
+
     chessMove(move)
 
     chessForward()
 
     chessForward()
 +
    chessFindBoard()
 +
    log(msg)
 
     videoFeed()
 
     videoFeed()
 
     videoPause()
 
     videoPause()
−
     __init__(args,warpPointBGRColor=(0,255,0))
+
     videoRecord(path)
 
     chessWebCamClick(x,y,w,h)
 
     chessWebCamClick(x,y,w,h)
 +
    chessPgn(pgn)
 +
    chessSave()
 
     index(msg)
 
     index(msg)
−
     download(path,filename)
+
     #genVideoStreamed(video)
 +
    indexException(e)
 +
    chessGameState(gameid)
 +
    timeStamp()
 +
    chessGameColors()
 +
    setDebug(debug)
 +
    createNewCame()
 +
    photoDownload(path,filename)
 
     warpAndRotate(image)
 
     warpAndRotate(image)
 
     chessTakeback()
 
     chessTakeback()
Line 296: Line 479:
 
   }
 
   }
  
 +
}
 +
package YamlAbleMixin {
  
 
   note top of YamlAbleMixin: allow reading and writing derived objects from a yaml file.
 
   note top of YamlAbleMixin: allow reading and writing derived objects from a yaml file.
−
   class YamlAbleMixin [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/YamlAbleMixin.py]] {
+
   class YamlAbleMixin [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/YamlAbleMixin.py]] {
 
     writeYaml(name)
 
     writeYaml(name)
 
     readYaml(name)
 
     readYaml(name)
 
   }
 
   }
  
−
   class BadSegmentation [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/BoardFinder.py]] {
+
}
 +
package ChessTrapezoid {
 +
  Trapez2Square <|-- ChessTrapezoid
 +
  ChessTrapezoid -- ChessTSquare
 +
  ChessTSquare -- SquareChange
 +
  ChessTSquare -- FieldState
 +
 
 +
  note top of Transformation: Transformation kind.
 +
   class Transformation [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/ChessTrapezoid.py]] {
 
   }
 
   }
  
−
   BadSegmentation --|> Exception
+
 
−
   class BoardFinder [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/BoardFinder.py]] {
+
   note top of Trapez2Square: transform a trapez to a square and back as needed.
−
     getBlackMaxSide(colorImage)
+
   class Trapez2Square [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/ChessTrapezoid.py]] {
−
    setSide(side)
+
     relativeTrapezToTrapezXY(rx1,ry1,rx2,ry2)
−
     __init__(inImage)
+
     __init__(topLeft,topRight,bottomRight,bottomLeft)
−
     calibrateCornerMarker(dotImage)
+
     relativeToTrapezXY(rx,ry)
−
    rotateImage(image)
 
−
    GetFullImageBoard(rectCoordinates=None,rotations=None)
 
−
    prepare()
 
−
    DetectBoardOrientation()
 
−
    getDominatorOffset()
 
−
    GetChessBoardCoordinates(rotation)
 
−
    updateImage(inFrame)
 
 
   }
 
   }
  
−
   class BadImage [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/MovementDetector.py]] {
+
 
−
     __init__(value)
+
  note top of ChessTrapezoid: Chess board Trapezoid (UK) / Trapezium (US) / Trapez (DE)  as seen via a webcam image.
 +
   class ChessTrapezoid [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/ChessTrapezoid.py]] {
 +
    tSquareAt(row,col,rotation=0)
 +
    analyzeColors(image)
 +
    checkColors(image,averageColors,rangeFactor=1.0)
 +
    relativeToIdealXY(rx,ry)
 +
     __init__(trapezPoints,idealSize=640,rotation=0,video=None)
 +
    preMoveBoard(w,h)
 +
    setup(idealSize=640,video=None)
 +
    detectChanges(image,diffImage,detectState)
 +
    diffSum(image,other)
 +
    updatePieces(fen)
 +
    drawRCenteredText(image,text,rx,ry,color=(255,255,255))
 +
    warpedBoardImage(image)
 +
    drawDebug(image,color=(255,255,255))
 +
    optimizeColorCheck(image,averageColors,debug=False)
 +
    genSquares()
 +
    idealColoredBoard(w,h,transformation=Transformation.IDEAL)
 +
    rotateIndices(row,col,rotation)
 +
    diffBoardImage(image,other)
 +
    byFieldState()
 +
    drawFieldStates(image,fieldStates,transformation=Transformation.ORIGINAL,channels=3)
 +
    drawRCircle(image,rcenter,rradius,color,thickness=-1)
 +
    drawCircle(image,center,radius,color,thickness=-1)
 +
  }
 +
 
 +
 
 +
  note top of FieldState: the state of a field is a combination of the field color with a piece color + two empty field color options.
 +
  class FieldState [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/ChessTrapezoid.py]] {
 +
    title(titles=["whiteempty","whiteonwhite","blackonwhite","blackempty","whiteonblack","blackonblack"])
 +
  }
 +
 
 +
 
 +
  note top of FieldColorStats: Color statistics for Fields.
 +
  class FieldColorStats [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/ChessTrapezoid.py]] {
 +
    showStatsDebug(time)
 +
    analyzeStats(factor,time,debug=False)
 +
    __init__()
 +
    push(fieldState,an,percent)
 +
    showFieldStateDebug(fieldState)
 +
    showDebug(time)
 +
  }
 +
 
 +
 
 +
  note top of Color: Color definitions with maximum lightness difference and calculation of average color for a sample of square with a given fieldState.
 +
  class Color [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/ChessTrapezoid.py]] {
 +
    colorRange(rangeFactor)
 +
    fixMeans(means,stds,pixels,nonzero)
 +
    __init__(image)
 +
    fix(value)
 
     __str__()
 
     __str__()
 +
    countNonZero(image)
 
   }
 
   }
  
−
  BadImage --|> Exception
 
  
−
   note top of MovementDetector: This class used to detect if a move has occured in the board.
+
   note top of SquareChange: keep track of changes of a square over time.
−
   class MovementDetector [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/MovementDetector.py]] {
+
   class SquareChange [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/ChessTrapezoid.py]] {
−
     _getMovements()
+
     push(stats,value)
−
    detectMove(colorImage)
+
     __init__(value,stats)
−
     __init__(colorImage)
 
−
    _changeState(newBoard,newImage)
 
 
   }
 
   }
  
−
   class ArenaQuit [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/uci.py]] {
+
 
 +
  note top of ChessTSquare: a chess square in it's trapezoidal perspective.
 +
  class ChessTSquare [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/ChessTrapezoid.py]] {
 +
    checkMoved(detectState)
 +
    squareChange(image,diffImage)
 +
    getFieldState()
 +
    rxy2xy(image)
 +
    drawState(image,transformation,channels)
 +
    setPolygons(trapez,rtl_x,rtl_y,rtr_x,rtr_y,rbr_x,rbr_y,rbl_x,rbl_y)
 +
    getSquareImage(image)
 +
    addPreMoveImage(image)
 +
    getPolygon(transformation)
 +
    drawDebug(image,color=(255,255,255))
 +
    rcenter()
 +
    __init__(trapez,square)
 +
  }
 +
 
 +
}
 +
package boardfinder {
 +
BoardFinder -- Corners
 +
 
 +
  note top of Corners: Chess board corners.
 +
   class Corners [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/boardfinder.py]] {
 +
    sortXY(xy)
 +
    trapezColRows(cols,rows)
 +
    showDebug(image,title)
 +
    sort()
 +
    asPolygons(safetyMargin)
 +
    writeDebug(image,title,prefix)
 +
    showTrapezDebug(image,title,corners)
 +
    findPattern(image)
 +
    calcTrapez()
 +
    genChessPatterns()
 +
    calcPolygons(*safetyMargins)
 +
    safeXY(x,y,dx,dy)
 +
    __init__(pattern,video)
 
   }
 
   }
  
−
  ArenaQuit --|> Exception
 
  
−
   note top of Uci: This class interacts with stdin and stdout with Arena in the UCI.
+
   note top of BoardFinder: find a chess board in the given image.
−
   class Uci [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/uci.py]] {
+
   class BoardFinder [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/boardfinder.py]] {
−
     _setPosition(tokens)
+
     drawPolygon(image,pos,polygon,whiteColor,blackColor)
−
     getResponse()
+
    findChessBoard(image,title)
−
     sendMove(move)
+
    expand(image,title,histograms,corners)
 +
    getColorFiltered(image,histograms,title,corners)
 +
    maskPolygon(image,polygon)
 +
    findCorners(image,limit=1,searchWidth=640)
 +
    showHistogramDebug(histograms,title,corners)
 +
    sortPoints(xylist)
 +
    centerXY(xylist)
 +
    showPolygonDebug(image,title,corners)
 +
    maskCornerPolygons(image,corners,filterColor)
 +
    __init__(image,video=None)
 +
    fieldColor(pos)
 +
    preparefindCorners(image,searchWidth=640)
 +
     getHistograms(image,title,corners)
 +
     findOuterCorners(searchWidth=640)
 
   }
 
   }
  
 +
}
 +
package JsonAbleMixin {
  
 
   note top of JsonAbleMixin: allow reading and writing derived objects from a json file.
 
   note top of JsonAbleMixin: allow reading and writing derived objects from a json file.
−
   class JsonAbleMixin [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/JsonAbleMixin.py]] {
+
   class JsonAbleMixin [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/JsonAbleMixin.py]] {
 
     writeJson(name,postfix=".json")
 
     writeJson(name,postfix=".json")
 
     readJson(name,postfix=".json")
 
     readJson(name,postfix=".json")
 +
    asJson()
 +
  }
 +
 +
}
 +
package RunningStats {
 +
 +
  note top of MovingAverage: calculate a moving average.
 +
  class MovingAverage [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/RunningStats.py]] {
 +
    __init__(maxlen)
 +
    push(value)
 +
    mean()
 +
  }
 +
 +
  class MinMaxMixin    [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/RunningStats.py]] {
 +
    pushMinMax(value)
 +
    formatMinMax(formatM="%.1f-%.1f")
 +
    initMinMax()
 +
    __str__()
 
   }
 
   }
  
  
−
   note top of RunningStats: calculate mean, variance and standard deviation in one pass using Welfford's algorithm.
+
   note top of RunningStats: calculate mean, variance and standard deviation in one pass using Welford's algorithm.
−
   class RunningStats [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/RunningStats.py]] {
+
   class RunningStats [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/RunningStats.py]] {
 +
    format(formatS="%d%.1f±%.1f")
 
     variance()
 
     variance()
 
     __init__()
 
     __init__()
 +
    __str__()
 
     standard_deviation()
 
     standard_deviation()
 
     clear()
 
     clear()
 
     mean()
 
     mean()
 
     push(xvalue)
 
     push(xvalue)
 +
  }
 +
 +
 +
  note top of MinMaxStats: running statistics with minimum and maximum.
 +
  class MinMaxStats [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/RunningStats.py]] {
 +
    formatMinMax(formatR="%d%.1f±%.1f",formatM="%.1f-%.1f")
 +
    __init__()
 +
    push(value)
 
   }
 
   }
  
  
 
   note top of ColorStats: calculate the RunningStats for 3 color channels like RGB or HSV simultaneously.
 
   note top of ColorStats: calculate the RunningStats for 3 color channels like RGB or HSV simultaneously.
−
   class ColorStats [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/RunningStats.py]] {
+
   class ColorStats [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/RunningStats.py]] {
 
     push(c1,c2,c3)
 
     push(c1,c2,c3)
 
     colorKey()
 
     colorKey()
Line 376: Line 686:
 
     square(value)
 
     square(value)
 
     standard_deviation()
 
     standard_deviation()
 +
    clear()
 
     rgbColorKey()
 
     rgbColorKey()
 
     mean()
 
     mean()
 
   }
 
   }
  
 +
}
 +
package webchesscam {
  
 
   note top of WebChessCamArgs: This class parses command line arguments and generates a usage.
 
   note top of WebChessCamArgs: This class parses command line arguments and generates a usage.
−
   class WebChessCamArgs [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/webchesscam.py]] {
+
   class WebChessCamArgs [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/webchesscam.py]] {
 
     chessWebCamClick(width,height)
 
     chessWebCamClick(width,height)
 +
    autoindex(path='.')
 
     __init__(argv)
 
     __init__(argv)
−
    chessPgn()
 
 
     chessMove(move)
 
     chessMove(move)
 
     chessForward()
 
     chessForward()
−
     download(filename)
+
     chessFindBoard()
 +
    photoDownload(filename)
 +
    chessSave()
 +
    chessUpdate()
 
     video_pause()
 
     video_pause()
 
     video_feed()
 
     video_feed()
 +
    chessGameState(gameid)
 +
    chessGameColors()
 
     chessTakeback()
 
     chessTakeback()
 
     chessDebug()
 
     chessDebug()
Line 396: Line 714:
 
     photo()
 
     photo()
 
     videoRotate90()
 
     videoRotate90()
 +
    video_record()
 
     home()
 
     home()
 
   }
 
   }
  
 +
}
 +
package FPSCheck {
  
 
   note top of FPSCheck: Frame per second tracker.
 
   note top of FPSCheck: Frame per second tracker.
−
   class FPSCheck [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/FPSCheck.py]] {
+
   class FPSCheck [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/FPSCheck.py]] {
 
     fps()
 
     fps()
 
     __init__()
 
     __init__()
Line 409: Line 730:
 
   }
 
   }
  
−
  class UserExit [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/ChessCam.py]] {
+
}
−
  }
+
package Environment {
−
 
 
−
  UserExit --|> Exception
 
  
−
   note top of ChessCam: Chess Camera get next move by analyzing movements.
+
   note top of Environment: Runtime Environment.
−
   class ChessCam [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/ChessCam.py]] {
+
   class Environment [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/Environment.py]] {
 
     __init__()
 
     __init__()
−
     analyzeFrame()
+
     checkDir(path)
−
    playChessWithCam(args)
 
−
    prepare(argv)
 
−
    getNextMove()
 
−
    getDominatorOffset()
 
−
    detectMovement()
 
−
    playChessWithCamMoves()
 
 
   }
 
   }
  
 +
}
 +
package PlotLib {
  
−
   note top of Args: This class parses command line arguments and generates a usage.
+
   note top of PlotType: kind of Plot.
−
   class Args [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/Args.py]] {
+
   class PlotType [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/PlotLib.py]] {
−
    __init__(args)
 
−
  }
 
−
 
 
−
  class CannotBuildStateException [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/StateDetector.py]] {
 
−
    __init__(value)
 
−
    __str__()
 
 
   }
 
   }
  
−
  CannotBuildStateException --|> Exception
+
   class PlotLib [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/PlotLib.py]] {
−
   class StateDetector [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/StateDetector.py]] {
+
     __init__(title,pagesize,imagesPerPage=4)
−
     _divideInCells()
+
    addPlot(image,imageTitle,xvalues=[],yvalues=[],isBGR=False)
−
     detectState(colorImage)
+
    addInfos(pdf,infos)
−
     _findIntersects()
+
    A4(turned=False)
 +
    plotImage(ax,image,imageTitle,thumbNailSize)
 +
    createHistogramPDF(path,plotType=PlotType.HISTOGRAMM,infos={})
 +
    finishPDF(pdf,infos={})
 +
    finishPDFPage(pdf)
 +
    fixPath(path)
 +
    plotHistogramm(image,axarr,rowIndex,colIndex)
 +
    plotChannel(img,ax,channel,prevAx=None)
 +
     startPDF(path)
 +
     pixel(fig,inch)
 
   }
 
   }
  
 +
}
 +
package Video {
  
 
   note top of Video: Video handling e.g. recording/writing
 
   note top of Video: Video handling e.g. recording/writing
−
   class Video [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/Video.py]] {
+
   class Video [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/Video.py]] {
−
     record(prefix,printHints=True)
+
     prepareRecording(filename,width,height,fps=None)
−
     imencode(frame,format=".jpg")
+
    readImage(filePath)
−
     pause(ispaused)
+
    drawText(frame,text,bottomLeftCornerOfText,font,fontScale,fontBGRColor,lineThickness)
−
     rotate(image,angle,center=None,scale=1.0)
+
    still(prefix,imgformat="jpg",close=True,printHints=True,show=False,postProcess=None)
−
     open(filePath)
+
    warp(image,pts,squared=True)
 +
    drawRectangle(image,pt1,pt2,color=(0,255,0),thickness=1)
 +
    play()
 +
    is_int(s)
 +
    getEmptyImage(image,channels=1)
 +
     imencode(frame,imgformat=".jpg")
 +
     showImage(image,title,keyCheck=True,keyWait=5)
 +
     drawPolygon(image,polygon,color)
 +
    createBlank(width,height,rgb_color=(0,0,0))
 +
    paused()
 +
    record(prefix,printHints=True,fps=None)
 +
    capture(device)
 +
    setup(cap)
 +
    readFrame(show=False,postProcess=None)
 +
    addTimeStamp(frame,withFrames=True,withFPS=True,fontBGRColor=(0,255,0),fontScale=1.0,font=cv2.FONT_HERSHEY_SIMPLEX,lineThickness=1)
 +
     houghTransform(image)
 
     drawLines(image,lines)
 
     drawLines(image,lines)
−
     houghTransform(image)
+
     drawTrapezoid(image,points,color)
−
    timeStamp(separator='',timeseparator='')
 
−
    is_int(s)
 
 
     checkFilePath(filePath,raiseException=True)
 
     checkFilePath(filePath,raiseException=True)
 +
    open(filePath)
 +
    sumIntensity(image)
 +
    close()
 +
    drawCenteredText(frame,text,x,y,fontBGRColor=(0,255,0),fontScale=1.0,font=cv2.FONT_HERSHEY_SIMPLEX,lineThickness=1)
 +
    writeImage(image,filepath)
 +
    houghTransformP(image)
 +
    checkCap()
 +
    maskImage(image,mask)
 
     __init__()
 
     __init__()
−
    sumIntensity(image)
 
−
    drawTrapezoid(image,points,color)
 
−
    readFrame(show=False,postProcess=None)
 
 
     drawCircle(image,center,radius=10,color=(0,255,0),thickness=1)
 
     drawCircle(image,center,radius=10,color=(0,255,0),thickness=1)
 +
    timeStamp(separator='',timeseparator='')
 
     readJpgImage(show=False,postProcess=None)
 
     readJpgImage(show=False,postProcess=None)
 +
    pause(ispaused)
 +
    fileTimeStamp()
 
     getSubRect(image,rect)
 
     getSubRect(image,rect)
−
    drawRectangle(image,pt1,pt2,color=(0,255,0),thickness=1)
 
−
    play()
 
−
    setup(cap)
 
−
    addTimeStamp(frame,withFrames=True,withFPS=True,fontBGRColor=(0,255,0),fontScale=1.0,font=cv2.FONT_HERSHEY_SIMPLEX,lineThickness=2)
 
−
    warp(image,pts,squared=True)
 
−
    fileTimeStamp()
 
−
    showImage(image,title,keyCheck=True,keyWait=5)
 
−
    still(prefix,format="jpg",close=True,printHints=True,show=False,postProcess=None)
 
−
    checkCap()
 
−
    capture(device)
 
−
    houghTransformP(image)
 
−
    createBlank(width,height,rgb_color=(0,0,0))
 
 
     still2File(filename,format="jpg",close=True,printHints=True,show=False,postProcess=None)
 
     still2File(filename,format="jpg",close=True,printHints=True,show=False,postProcess=None)
−
     close()
+
     getEmptyImage4WidthAndHeight(w,h,channels)
−
     paused()
+
     rotate(image,angle,center=None,scale=1.0)
−
     readImage(filePath)
+
     showAndWriteImage(image,title,path="/tmp/",imageFormat=".jpg",keyCheck=True,keyWait=5)
 
   }
 
   }
  
  
 
   note top of VideoStream: run videograbbing in separate stream.
 
   note top of VideoStream: run videograbbing in separate stream.
−
   class VideoStream [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/Video.py]] {
+
   class VideoStream [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/Video.py]] {
 
     stop()
 
     stop()
 
     read()
 
     read()
Line 492: Line 821:
 
   }
 
   }
  
 +
}
 +
package BoardDetector {
  
 
   note top of BoardDetector: detect a chess board's state from the given image.
 
   note top of BoardDetector: detect a chess board's state from the given image.
−
   class BoardDetector [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/src/BoardDetector.py]] {
+
   class BoardDetector [[https://github.com/WolfgangFahl/play-chess-with-a-webcam/tree/master/pcwawc/BoardDetector.py]] {
−
     __init__(board,video)
+
     divideInFields(image)
 +
    sortByFieldState()
 +
    genFields()
 
     analyze(image,frameIndex,distance=3,step=1)
 
     analyze(image,frameIndex,distance=3,step=1)
 
     analyzeColors(image,distance=3,step=1)
 
     analyzeColors(image,distance=3,step=1)
 +
    analyzeFields(image,grid,roiLambda)
 +
    __init__(board,video,speedup=1)
 
   }
 
   }
  
 +
}
 +
package perspective {
 +
}
 
   skinparam titleFontSize 18
 
   skinparam titleFontSize 18
 
   skinparam titleFontStyle bold
 
   skinparam titleFontStyle bold
Line 522: Line 860:
 
   skinparam noteFontSize 14
 
   skinparam noteFontSize 14
 
</uml>
 
</uml>
−
 
−
 
  
 
[[Category:Raspberry]]
 
[[Category:Raspberry]]
 
[[Category:Chess]]
 
[[Category:Chess]]
  
 +
= Development Environment =
 +
https://www.liclipse.com/ is recommended since it alows interactive graphical debugging and editing with syntax and error hints.
 
= OS-Support =
 
= OS-Support =
 
== MacOS High Sierra 10.13.6 ==
 
== MacOS High Sierra 10.13.6 ==
Line 618: Line 956:
  
 
== Ubuntu 18.04.3 LTS bionic beaver ==
 
== Ubuntu 18.04.3 LTS bionic beaver ==
 +
=== Upgrade Python to 3.7 ===
 +
see https://linuxize.com/post/how-to-install-python-3-7-on-ubuntu-18-04/
 +
<source lang='bash'>
 +
sudo add-apt-repository ppa:deadsnakes/ppa
 +
sudo apt-install python3.7
 +
# install tkinter
 +
sudo apt-get install python3-tk
 +
</source>
 +
make python3.7 the default python3
 +
* https://unix.stackexchange.com/a/410851/38701
  
 
=== Install ===
 
=== Install ===
 
<source lang='bash' highlight="1,23">
 
<source lang='bash' highlight="1,23">
 
scripts/install  
 
scripts/install  
 +
scripts/install
 +
Bootstrap already downloaded
 +
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 +
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 +
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 +
chess.js already downloaded
 
checking that python3  is installed on os Linux ...
 
checking that python3  is installed on os Linux ...
 
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checking that pip3  is installed on os Linux ...
 
checking that pip3  is installed on os Linux ...
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Installing collected packages: numpy, opencv-python, python-chess, ndjson, requests, berserk, python-lichess, imutils, click, Werkzeug, Jinja2, itsdangerous, Flask, aniso8601, Flask-RESTful, future, Flask-Silk, Flask-AutoIndex, PyYAML, mss, Pillow, jsonpickle, zope.event, zope.schema, interface, py, atomicwrites, more-itertools, zipp, importlib-metadata, pluggy, attrs, pytest, cycler, kiwisolver, pyparsing, matplotlib, scipy, coverage, pytest-cov
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Successfully installed Flask-1.1.1 Flask-AutoIndex-0.6.4 Flask-RESTful-0.3.7 Flask-Silk-0.2 Jinja2-2.10.3 Pillow-6.2.1 PyYAML-5.1 Werkzeug-0.16.0 aniso8601-8.0.0 atomicwrites-1.3.0 attrs-19.3.0 berserk-0.3.1 click-7.0 coverage-5.0.1 cycler-0.10.0 future-0.18.2 importlib-metadata-1.3.0 imutils-0.5.3 interface-2.11.1 itsdangerous-1.1.0 jsonpickle-1.2 kiwisolver-1.1.0 matplotlib-2.2.3 more-itertools-8.0.2 mss-4.0.3 ndjson-0.1.0 numpy-1.18.0 opencv-python-4.1.2.30 pluggy-0.13.1 py-1.8.0 pyparsing-2.4.6 pytest-3.8.2 pytest-cov-2.8.1 python-chess-0.29.0 python-lichess-0.9 requests-2.22.0 scipy-1.2.2 zipp-0.6.0 zope.event-4.4 zope.schema-4.9.3
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Successfully installed atomicwrites-1.3.0 attrs-19.3.0 coverage-4.5.4 cycler-0.10.0 importlib-metadata-0.23 kiwisolver-1.1.0 matplotlib-3.1.1 more-itertools-7.2.0 numpy-1.17.3 opencv-python-4.1.1.26 packaging-19.2 pluggy-0.13.0 py-1.8.0 pytest-5.2.1 pytest-cov-2.8.1 python-chess-0.28.3 scipy-1.3.1 wcwidth-0.1.7 zipp-0.6.0
 
 
</source>
 
</source>
 +
 
=== Test ===
 
=== Test ===
 
<source lang='bash' highlight="1">
 
<source lang='bash' highlight="1">
Line 789: Line 1,142:
 
</source>
 
</source>
  
−
== Rapspbian 9.8 stretch ==
+
== Raspbian 10 buster ==
 +
=== Modify requirements.txt ===
 +
As of 2019-12 there is no current opencv for Raspbian and a few work-arounds are necessary.
 +
<source lang='bash'>
 +
git diff
 +
diff --git a/pcwawc/requirements.txt b/pcwawc/requirements.txt
 +
index 019d524..a277b59 100644
 +
--- a/pcwawc/requirements.txt
 +
+++ b/pcwawc/requirements.txt
 +
@@ -3,7 +3,7 @@
 +
# runtime dependencies
 +
#
 +
# https://opencv-python-tutroals.readthedocs.io/en/latest/py_tutorials/py_tutorials.html
 +
-opencv-python==4.1.2.30
 +
+opencv-python==4.1.*
 +
# python-chess
 +
# https://buildmedia.readthedocs.org/media/pdf/python-chess/latest/python-chess.pdf
 +
python-chess==0.29.0
 +
</source>
 +
=== Install ===
 +
<source lang='bash' highlight="1-3">
 +
scripts/install
 +
...
 +
# to avoid warning later
 +
pip3 install --no-cache-dir cairocffi
 +
</source>
 +
==== Issue undefined symbol: __atomic_fetch_add_8 ====
 +
If you get:
 +
<pre>
 +
undefined symbol: __atomic_fetch_add_8
 +
</pre>
 +
* https://github.com/EdjeElectronics/TensorFlow-Object-Detection-on-the-Raspberry-Pi/issues/67
 +
 
 +
define this:
 +
<source lang='bash'>
 +
export LD_PRELOAD=/usr/lib/arm-linux-gnueabihf/libatomic.so.1.2.0
 +
</source>
 +
 
 +
=== Test ===
 +
<source lang='bash'>
 +
scripts/run --input ../Chess-Testmedia/TK_scholarsmate30.avi --event 'PlayChessWithaWebCam' --site 'Stuttgart-Germany' --black OTB1 --white OTB2 --round 1 --warp '[[81,18],[271,15],[268,203],[85,203]]' --rotation 90 --nomoves
 +
/usr/local/lib/python3.7/dist-packages/matplotlib/backends/backend_gtk3agg.py:16: UserWarning: The Gtk3Agg backend is known to not work on Python 3.x with pycairo. Try installing cairocffi.
 +
  "The Gtk3Agg backend is known to not work on Python 3.x with pycairo. "
 +
[Event "PlayChessWithaWebCam"]
 +
[Site "Stuttgart-Germany"]
 +
[Date "2019-12-28 20:17:35"]
 +
[Round "1"]
 +
[White "OTB2"]
 +
[Black "OTB1"]
 +
[Result "1-0"]
 +
 
 +
1. e4 e5 2. Qh5 Nc6 3. Bc4 Nf6 4. Qxf7# 1-0
 +
</source>
 +
 
 +
== Raspbian 9.8 stretch (not successful) ==
 
=== Install ===
 
=== Install ===
 
if the install fails e.g. with an Exception in urlopen you might want to restart the install.
 
if the install fails e.g. with an Exception in urlopen you might want to restart the install.
Line 865: Line 1,272:
  
 
The issue is that this project needs Python3.7 to work which can only be installed manually by compiling on stretch at this time (which i didn't try out ...)
 
The issue is that this project needs Python3.7 to work which can only be installed manually by compiling on stretch at this time (which i didn't try out ...)
 +
 +
== Windows 7/10 ==
 +
# Download Python 3.7.3 from https://www.python.org/downloads/release/python-373/
 +
## https://www.python.org/ftp/python/3.7.3/python-3.7.3-amd64.exe
 +
=== Alternative: Install via Linux Subsystem ===
 +
This installation uses a "hybrid approach" - we install the web elements e.g. javascript/css/fonts via bash script and then use the
 +
Windows native python and pip to proceed.
 +
* see https://docs.microsoft.com/de-de/windows/wsl/install-win10 with Ubuntu from the Microsoft Store
 +
then follow the linux instructions
 +
<source lang='bash'>
 +
sudo apt-get update
 +
sudo apt-get upgrade
 +
sudo apt-get install xdg-utils
 +
</source>
 +
Access files via Z:
 +
* https://superuser.com/a/1502631/166461
 +
<source lang='bash'>
 +
cd pcwawc
 +
pip install -r requirements.txt
 +
cd ..
 +
set PYTHONPATH=.;%PYTHONPATH%;
 +
</source>

Latest revision as of 12:49, 9 January 2020

OsProject
edit
id  PlayChessWithAWebCam
state  
owner  Wolfgang Fahl
title  Play Chess With A WebCam
url  https://github.com/WolfgangFahl/play-chess-with-a-webcam
version  0.0.1
description  
date  2019/10/21
since  
until  

PlayChessWithAWebCam2019-10-26.png Click here to comment see PlayChessWithAWebCam

Motivation

See MagneticSensorChessBoard1987 for the initial project of 1987. Time has moved on and the goals of the 1987 project can be achieved with less hardware and software in a more convenient manner these days.

Usecases

Play Chess With A Webcam

As a chess player given a physical board and a starting position in FEN notation and a webcam observing the board in a proper angle (e.g. from above) i want to play moves against an opponent that

  1. might sit directly in front of me
  2. might sit with a similar setup remotely in front of a physical board
  3. might play using some other remote means of communication

so that my moves are recorded and transmitted with the option to

  1. later analyze
  2. immediately analyze and if allowed by the oponent take back moves

If the oponent is not at the board I'll have to do his moves manually or later might use some kind of robot to do that for me ...

Detecting Moves by a WebCAM

As a chess player given a logical chess board setting in FEN notation (e.g. starting FEN that I have setup on my physical board being observed by a webcam in HD at e.g. 25 FPS I want to use a webcam to detect my next valid move e.g. e2-e4 so that the logical board changes to the new FEN e.g. (https://lichess.org/editor/rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR_w_KQkq_-) and the move is available in Algebraic_Notation e.g. e2-e4 e.g. to be transferred via Universal_Chess_Interface or e.g. lichess.org

Process Chessgame webcam movie recording to create PGN

As a chess player

I want to process a given movie of a chessgame so that I get a Portable Game Notation of the game's moves

see

https://chess.stackexchange.com/questions/4695/tools-for-automated-notation-webcam-movie-to-pgn/4699

State of Project

As of 2019-12-28 version 0.0.1 has not been released yet. The state of the project is alpha and will be in beta in a few days.

There is already a lof of stuff to try out and to participate in this open source project.

There is a web frontend which you can try out. Sample videos are available at https://github.com/SteinscheisserKarl/Chess-Testmedia/ which you can check out with: 

sudo apt-get install git-lfs
git clone https://github.com/SteinscheisserKarl/Chess-Testmedia/
cd Chess-Testmedia
git lfs install
git lfs pull

git clone https://github.com/WolfgangFahl/play-chess-with-a-webcam
cd play-chess-with-a-webcam
scripts/install
scripts/run --input ../Chess-Testmedia/TK_scholarsmate30.avi --event 'PlayChessWithaWebCam' --site 'Stuttgart-Germany' --black OTB1 --white OTB2 --round 1 --warp '[[81,18],[271,15],[268,203],[85,203]]' --rotation 90 --nomoves

to tryout one of the Scholars Mate example video's in command line mode ScholarsMateDebug2019-10-29.png or 

scripts/runweb

for the default web cam or 

scripts/runweb --input 1

if there is a second webcam installed.

You might want to click the corners of your chessboard to try out the warp function manually or click the .


The scripts:

  • still
  • record

are already useful for taking pictures and movie recordings of your chess match. The detection of the board and moves is not fully operational yet.

If you'd like to experiment a bit you can run the tests which will show some debug output.

Installation

Prerequisites: python3.7 (install script will check and try automatic installation in Ubuntu/MacOS) 

git clone https://github.com/WolfgangFahl/play-chess-with-a-webcam
Cloning into 'play-chess-with-a-webcam'...
remote: Enumerating objects: 57, done.
remote: Counting objects: 100% (57/57), done.
remote: Compressing objects: 100% (40/40), done.
remote: Total 385 (delta 29), reused 34 (delta 17), pack-reused 328
Receiving objects: 100% (385/385), 1.79 MiB | 3.17 MiB/s, done.
Resolving deltas: 100% (244/244), done
cd play-chess-with-a-webcam
scripts/install
checking that python3  is installed on os Linux ...
/usr/bin/python3
checking that pip3  is installed on os Linux ...
installing pip3 from apt-package python3-pip
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following package was automatically installed and is no longer required:
  libevent-core-2.1-6
Use 'sudo apt autoremove' to remove it.
The following additional packages will be installed:
  libexpat1-dev libpython3-dev libpython3.6-dev python-pip-whl python3-dev
  python3-setuptools python3-wheel python3.6-dev
Suggested packages:
  python-setuptools-doc
The following NEW packages will be installed:
  libexpat1-dev libpython3-dev libpython3.6-dev python-pip-whl python3-dev
  python3-pip python3-setuptools python3-wheel python3.6-dev
0 upgraded, 9 newly installed, 0 to remove and 40 not upgraded.
Need to get 47,5 MB of archives.
After this operation, 81,7 MB of additional disk space will be used.
Do you want to continue? [Y/n] y

MacoS Macports

You might want to set python3 

sudo port select --list pip
sudo port select --set pip3 pip37
sudo port select --list python
sudo port select --set python3 python37

Usage

WebUI

Menu

home description save folder videocam camera_alt bug_report crop keyboard_arrow_left keyboard_arrow_right rotate_right play_arrow

Command line usage

scripts/runweb -h
[2019-10-29 09:27:14,631] INFO in webchesscam: python src folder is /Users/wf/source/python/play-chess-with-a-webcam/src
[2019-10-29 09:27:14,646] INFO in webchesscam: Running on Darwin
usage: webchesscam.py [-h] [--port PORT] [--input INPUT] [--host HOST]
                      [--debug] [--rotation ROTATION] [--warp WARP]

WebChessCam

optional arguments:
  -h, --help           show this help message and exit
  --port PORT          port to run server at
  --input INPUT        Manually set the input device.
  --host HOST          host to allow access for
  --debug              show debug output
  --rotation ROTATION  rotation of chessboard
  --warp WARP          warp points

Recording

Still images

scripts/still

Video of match

scripts/record

Example Sources

OpenCV

Also in the examples/opencv directory you'll find:

  • colorcluster.py
  • histogramm.py
  • hough_lines.py
  • ...

hough lines

python3 examples/opencv/hough_lines.py testMedia/chessBoard002.jpg

ChessBoard002.jpg DetectedProbabilisticHough2019-10-21.png DetectedHough2019-10-21.png

histogramm / colorcluster

ChessBoard006.jpg 

python3 examples/opencv/histogramm.py testMedia/chessBoard006.jpg

Hsvhistogramm2019-10-21.jpg 

python3 examples/opencv/colorcluster.py testMedia/chessBoard006.jpg
Clusterization took 2.8 s for 1 channels
Clusterization took 4.5 s for 2 channels
Clusterization took 6.7 s for 3 channels

ColorCluster2019-10-21.jpg

Testing

scripts/test
---------- coverage: platform darwin, python 3.7.4-final-0 -----------
Name                         Stmts   Miss  Cover
------------------------------------------------
src/Args.py                     10      7    30%
src/Board.py                    79      5    94%
src/BoardDetector.py            53      1    98%
src/BoardFinder.py             185     12    94%
src/Cell.py                     10      3    70%
src/ChessCam.py                 85     59    31%
src/Environment.py              19      0   100%
src/FPSCheck.py                 17      0   100%
src/Field.py                    98      1    99%
src/Game.py                     80     11    86%
src/Histogram.py                72      0   100%
src/InputManager.py             41     29    29%
src/JsonAbleMixin.py            32      7    78%
src/MovementDetector.py         55     40    27%
src/RunningStats.py             61      4    93%
src/StateDetector.py           102      7    93%
src/Video.py                   275    101    63%
src/WebApp.py                  175     84    52%
src/YamlAbleMixin.py            22      4    82%
src/ciede2000.py                88      9    90%
src/imutils/__init__.py          1      0   100%
src/imutils/perspective.py      25      0   100%
src/mathUtils.py                48      7    85%
src/test_Args.py                16      0   100%
src/test_Board.py               99      8    92%
src/test_BoardDetector.py       87      0   100%
src/test_ChessCam.py             4      0   100%
src/test_Field.py               19      0   100%
src/test_Game.py                48      0   100%
src/test_Histogram.py           31      1    97%
src/test_OpenCV_version.py       6      0   100%
src/test_RunningStats.py        35      0   100%
src/test_StateDetector.py       14      0   100%
src/test_Video.py               68      1    99%
src/test_Warp.py                46      2    96%
src/test_findBoard.py           44      0   100%
src/webchesscam.py              94     39    59%
------------------------------------------------
TOTAL                         2244    442    80%

================== 38 passed, 4 warnings in 94.81s (0:01:34)

Hardware

see e.g Raspberry_PI_Chessboard_Camera

Projects

  1. PlayChessWithAWebCam
  2. CV_Chess

UCI compatible GUIs

XBoard

see XBoard

Open Source Projects

Commercial

Links

Research

see also

Stackexchange

Videos

Source Code

play-chess-with-a-webcam

see github fork at

Written in python using python3.7. see https://unix.stackexchange.com/a/410851/38701 for selection your python version on Ubuntu

Code Structure

click classes to see source code at Play Chess With A WebCam github repository

Development Environment

https://www.liclipse.com/ is recommended since it alows interactive graphical debugging and editing with syntax and error hints.

OS-Support

MacOS High Sierra 10.13.6

MacPorts: 2.6.2

Install

scripts/install
checking that python3  is installed on os Darwin ...
/opt/local/bin/python3
checking that pip3  is installed on os Darwin ...
/opt/local/bin/pip3
Requirement already satisfied: opencv-python in /opt/local/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages (from -r requirements.txt (line 2)) (4.1.1.26)
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  Downloading https://files.pythonhosted.org/packages/c3/8b/af9e0984f5c0df06d3fab0bf396eb09cbf05f8452de4e9502b182f59c33b/matplotlib-3.1.1-cp37-cp37m-macosx_10_6_intel.macosx_10_9_intel.macosx_10_9_x86_64.macosx_10_10_intel.macosx_10_10_x86_64.whl (14.4MB)
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Requirement already satisfied: packaging in /opt/local/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages (from pytest->-r requirements.txt (line 4)) (19.2)
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Collecting cycler>=0.10 (from matplotlib->-r requirements.txt (line 6))
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Collecting coverage>=4.4 (from pytest-cov->-r requirements.txt (line 10))
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Installing collected packages: kiwisolver, cycler, matplotlib, scipy, coverage, pytest-cov, python-chess
Successfully installed coverage-4.5.4 cycler-0.10.0 kiwisolver-1.1.0 matplotlib-3.1.1 pytest-cov-2.8.1 python-chess-0.28.3 scipy-1.3.1

Test

scripts/test 
=========================================== test session starts ===========================================
platform darwin -- Python 3.7.3, pytest-5.2.1, py-1.8.0, pluggy-0.13.0
rootdir: /Users/wf/source/python/play-chess-with-a-webcam
plugins: cov-2.8.1
collected 11 items                                                                                        

src/test_Board.py .                                                                                 [  9%]
src/test_ChessCam.py .                                                                              [ 18%]
src/test_OpenCV_version.py .                                                                        [ 27%]
src/test_Video.py ...                                                                               [ 54%]
src/test_findBoard.py .....                                                                         [100%]

---------- coverage: platform darwin, python 3.7.3-final-0 -----------
Name                         Stmts   Miss  Cover
------------------------------------------------
src/Args.py                     10      7    30%
src/Board.py                    33      3    91%
src/BoardFinder.py             186     12    94%
src/Cell.py                     10      4    60%
src/ChessCam.py                 86     59    31%
src/InputManager.py             57     37    35%
src/MovementDetector.py         55     40    27%
src/StateDetector.py            92     75    18%
src/Video.py                   133     48    64%
src/mathUtils.py                49     25    49%
src/test_Board.py               23      3    87%
src/test_ChessCam.py             4      0   100%
src/test_OpenCV_version.py       6      0   100%
src/test_Video.py               28      0   100%
src/test_findBoard.py           49      0   100%
------------------------------------------------
TOTAL                          821    313    62%


=========================================== 11 passed in 37.60s ===========================================

Ubuntu 18.04.3 LTS bionic beaver

Upgrade Python to 3.7

see https://linuxize.com/post/how-to-install-python-3-7-on-ubuntu-18-04/ 

sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt-install python3.7
# install tkinter
sudo apt-get install python3-tk

make python3.7 the default python3

Install

scripts/install 
 scripts/install
Bootstrap already downloaded
Material Design Lite already downloaded
Material Design Icons already downloaded
chessboard.js already downloaded
chessboard-1.0.0.css already downloaded
chessboard-1.0.0.min.css already downloaded
js/jquery-3.4.1.min.js already downloaded
chess.js already downloaded
checking that python3  is installed on os Linux ...
/usr/bin/python3
checking that pip3  is installed on os Linux ...
/usr/bin/pip3
Collecting opencv-python==4.1.2.30 (from -r requirements.txt (line 6))
  Downloading https://files.pythonhosted.org/packages/d8/38/60de02a4c9013b14478a3f681a62e003c7489d207160a4d7df8705a682e7/opencv_python-4.1.2.30-cp37-cp37m-manylinux1_x86_64.whl (28.3MB)
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Collecting requests>=2.20.0 (from berserk==0.3.1->-r requirements.txt (line 12))
  Using cached https://files.pythonhosted.org/packages/51/bd/23c926cd341ea6b7dd0b2a00aba99ae0f828be89d72b2190f27c11d4b7fb/requests-2.22.0-py2.py3-none-any.whl
Requirement already satisfied: six in /usr/lib/python3/dist-packages (from python-lichess==0.9->-r requirements.txt (line 14))
Collecting click>=5.1 (from Flask==1.1.1->-r requirements.txt (line 21))
  Using cached https://files.pythonhosted.org/packages/fa/37/45185cb5abbc30d7257104c434fe0b07e5a195a6847506c074527aa599ec/Click-7.0-py2.py3-none-any.whl
Collecting Werkzeug>=0.15 (from Flask==1.1.1->-r requirements.txt (line 21))
  Using cached https://files.pythonhosted.org/packages/ce/42/3aeda98f96e85fd26180534d36570e4d18108d62ae36f87694b476b83d6f/Werkzeug-0.16.0-py2.py3-none-any.whl
Collecting Jinja2>=2.10.1 (from Flask==1.1.1->-r requirements.txt (line 21))
  Using cached https://files.pythonhosted.org/packages/65/e0/eb35e762802015cab1ccee04e8a277b03f1d8e53da3ec3106882ec42558b/Jinja2-2.10.3-py2.py3-none-any.whl
Collecting itsdangerous>=0.24 (from Flask==1.1.1->-r requirements.txt (line 21))
  Using cached https://files.pythonhosted.org/packages/76/ae/44b03b253d6fade317f32c24d100b3b35c2239807046a4c953c7b89fa49e/itsdangerous-1.1.0-py2.py3-none-any.whl
Requirement already satisfied: pytz in /usr/lib/python3/dist-packages (from Flask-RESTful==0.3.7->-r requirements.txt (line 22))
Collecting aniso8601>=0.82 (from Flask-RESTful==0.3.7->-r requirements.txt (line 22))
  Using cached https://files.pythonhosted.org/packages/eb/e4/787e104b58eadc1a710738d4e418d7e599e4e778e52cb8e5d5ef6ddd5833/aniso8601-8.0.0-py2.py3-none-any.whl
Collecting future>=0.13.0 (from Flask-AutoIndex==0.6.4->-r requirements.txt (line 23))
  Using cached https://files.pythonhosted.org/packages/45/0b/38b06fd9b92dc2b68d58b75f900e97884c45bedd2ff83203d933cf5851c9/future-0.18.2.tar.gz
Collecting Flask-Silk>=0.2 (from Flask-AutoIndex==0.6.4->-r requirements.txt (line 23))
  Using cached https://files.pythonhosted.org/packages/05/95/57667716765b21a8fcd0918ae4a99b5de60f8632d7d1a0b401609fbb28ab/Flask-Silk-0.2.tar.gz
Requirement already satisfied: zope.interface in /usr/lib/python3/dist-packages (from interface==2.11.1->-r requirements.txt (line 39))
Collecting zope.schema (from interface==2.11.1->-r requirements.txt (line 39))
  Using cached https://files.pythonhosted.org/packages/3c/e6/5454a9d72372b73aec715bbded44a0311807dcf7869e2b7bcf196a8e92de/zope.schema-4.9.3-py2.py3-none-any.whl
Requirement already satisfied: setuptools in /usr/lib/python3/dist-packages (from pytest==3.8.2->-r requirements.txt (line 44))
Collecting py>=1.5.0 (from pytest==3.8.2->-r requirements.txt (line 44))
  Using cached https://files.pythonhosted.org/packages/76/bc/394ad449851729244a97857ee14d7cba61ddb268dce3db538ba2f2ba1f0f/py-1.8.0-py2.py3-none-any.whl
Collecting atomicwrites>=1.0 (from pytest==3.8.2->-r requirements.txt (line 44))
  Using cached https://files.pythonhosted.org/packages/52/90/6155aa926f43f2b2a22b01be7241be3bfd1ceaf7d0b3267213e8127d41f4/atomicwrites-1.3.0-py2.py3-none-any.whl
Collecting pluggy>=0.7 (from pytest==3.8.2->-r requirements.txt (line 44))
  Using cached https://files.pythonhosted.org/packages/a0/28/85c7aa31b80d150b772fbe4a229487bc6644da9ccb7e427dd8cc60cb8a62/pluggy-0.13.1-py2.py3-none-any.whl
Collecting attrs>=17.4.0 (from pytest==3.8.2->-r requirements.txt (line 44))
  Using cached https://files.pythonhosted.org/packages/a2/db/4313ab3be961f7a763066401fb77f7748373b6094076ae2bda2806988af6/attrs-19.3.0-py2.py3-none-any.whl
Collecting more-itertools>=4.0.0 (from pytest==3.8.2->-r requirements.txt (line 44))
  Using cached https://files.pythonhosted.org/packages/68/03/0604cec1ea13c9f063dd50f900d1a36160334dd3cfb01fd0e638f61b46ba/more_itertools-8.0.2-py3-none-any.whl
Requirement already satisfied: python-dateutil>=2.1 in /usr/lib/python3/dist-packages (from matplotlib==2.2.3->-r requirements.txt (line 46))
Collecting cycler>=0.10 (from matplotlib==2.2.3->-r requirements.txt (line 46))
  Using cached https://files.pythonhosted.org/packages/f7/d2/e07d3ebb2bd7af696440ce7e754c59dd546ffe1bbe732c8ab68b9c834e61/cycler-0.10.0-py2.py3-none-any.whl
Collecting kiwisolver>=1.0.1 (from matplotlib==2.2.3->-r requirements.txt (line 46))
  Downloading https://files.pythonhosted.org/packages/93/f8/518fb0bb89860eea6ff1b96483fbd9236d5ee991485d0f3eceff1770f654/kiwisolver-1.1.0-cp37-cp37m-manylinux1_x86_64.whl (90kB)
    100% |████████████████████████████████| 92kB 5.3MB/s 
Collecting pyparsing!=2.0.4,!=2.1.2,!=2.1.6,>=2.0.1 (from matplotlib==2.2.3->-r requirements.txt (line 46))
  Using cached https://files.pythonhosted.org/packages/5d/bc/1e58593167fade7b544bfe9502a26dc860940a79ab306e651e7f13be68c2/pyparsing-2.4.6-py2.py3-none-any.whl
Collecting coverage>=4.4 (from pytest-cov==2.8.1->-r requirements.txt (line 50))
  Downloading https://files.pythonhosted.org/packages/ee/04/3d94488c04c5fa82eb21a04c82b3f4f1a54fc230496aefa233504a39529d/coverage-5.0.1-cp37-cp37m-manylinux1_x86_64.whl (226kB)
    100% |████████████████████████████████| 235kB 3.7MB/s 
Requirement already satisfied: chardet<3.1.0,>=3.0.2 in /usr/lib/python3/dist-packages (from requests>=2.20.0->berserk==0.3.1->-r requirements.txt (line 12))
Requirement already satisfied: idna<2.9,>=2.5 in /usr/lib/python3/dist-packages (from requests>=2.20.0->berserk==0.3.1->-r requirements.txt (line 12))
Requirement already satisfied: urllib3!=1.25.0,!=1.25.1,<1.26,>=1.21.1 in /usr/lib/python3/dist-packages (from requests>=2.20.0->berserk==0.3.1->-r requirements.txt (line 12))
Requirement already satisfied: certifi>=2017.4.17 in /usr/lib/python3/dist-packages (from requests>=2.20.0->berserk==0.3.1->-r requirements.txt (line 12))
Requirement already satisfied: MarkupSafe>=0.23 in /usr/lib/python3/dist-packages (from Jinja2>=2.10.1->Flask==1.1.1->-r requirements.txt (line 21))
Collecting zope.event (from zope.schema->interface==2.11.1->-r requirements.txt (line 39))
  Using cached https://files.pythonhosted.org/packages/c5/96/361edb421a077a4c208b4a5c212737d78ae03ce67fbbcd01621c49f332d1/zope.event-4.4-py2.py3-none-any.whl
Collecting importlib-metadata>=0.12; python_version < "3.8" (from pluggy>=0.7->pytest==3.8.2->-r requirements.txt (line 44))
  Using cached https://files.pythonhosted.org/packages/e9/71/1a1e0ed0981bb6a67bce55a210f168126b7ebd2065958673797ea66489ca/importlib_metadata-1.3.0-py2.py3-none-any.whl
Collecting zipp>=0.5 (from importlib-metadata>=0.12; python_version < "3.8"->pluggy>=0.7->pytest==3.8.2->-r requirements.txt (line 44))
  Using cached https://files.pythonhosted.org/packages/74/3d/1ee25a26411ba0401b43c6376d2316a71addcc72ef8690b101b4ea56d76a/zipp-0.6.0-py2.py3-none-any.whl
Building wheels for collected packages: imutils, PyYAML, interface, future, Flask-Silk
  Running setup.py bdist_wheel for imutils ... done
  Stored in directory: /root/.cache/pip/wheels/16/84/1f/bf88641293cda2c8be81a5c4b8ca973dd9125a6dc3767417fd
  Running setup.py bdist_wheel for PyYAML ... done
  Stored in directory: /root/.cache/pip/wheels/ad/56/bc/1522f864feb2a358ea6f1a92b4798d69ac783a28e80567a18b
  Running setup.py bdist_wheel for interface ... done
  Stored in directory: /root/.cache/pip/wheels/67/ff/9c/32ef7f63060382c02ba8b1f8f33fed59987378e119da38835f
  Running setup.py bdist_wheel for future ... done
  Stored in directory: /root/.cache/pip/wheels/8b/99/a0/81daf51dcd359a9377b110a8a886b3895921802d2fc1b2397e
  Running setup.py bdist_wheel for Flask-Silk ... done
  Stored in directory: /root/.cache/pip/wheels/58/d6/38/94efca8a2a27bdbfb771ef358684f0621a5d99481c8a506f9a
Successfully built imutils PyYAML interface future Flask-Silk
Installing collected packages: numpy, opencv-python, python-chess, ndjson, requests, berserk, python-lichess, imutils, click, Werkzeug, Jinja2, itsdangerous, Flask, aniso8601, Flask-RESTful, future, Flask-Silk, Flask-AutoIndex, PyYAML, mss, Pillow, jsonpickle, zope.event, zope.schema, interface, py, atomicwrites, more-itertools, zipp, importlib-metadata, pluggy, attrs, pytest, cycler, kiwisolver, pyparsing, matplotlib, scipy, coverage, pytest-cov
  Found existing installation: requests 2.18.4
    Not uninstalling requests at /usr/lib/python3/dist-packages, outside environment /usr
  Found existing installation: PyYAML 3.12
    Not uninstalling pyyaml at /usr/lib/python3/dist-packages, outside environment /usr
  Found existing installation: Pillow 5.1.0
    Not uninstalling pillow at /usr/lib/python3/dist-packages, outside environment /usr
Successfully installed Flask-1.1.1 Flask-AutoIndex-0.6.4 Flask-RESTful-0.3.7 Flask-Silk-0.2 Jinja2-2.10.3 Pillow-6.2.1 PyYAML-5.1 Werkzeug-0.16.0 aniso8601-8.0.0 atomicwrites-1.3.0 attrs-19.3.0 berserk-0.3.1 click-7.0 coverage-5.0.1 cycler-0.10.0 future-0.18.2 importlib-metadata-1.3.0 imutils-0.5.3 interface-2.11.1 itsdangerous-1.1.0 jsonpickle-1.2 kiwisolver-1.1.0 matplotlib-2.2.3 more-itertools-8.0.2 mss-4.0.3 ndjson-0.1.0 numpy-1.18.0 opencv-python-4.1.2.30 pluggy-0.13.1 py-1.8.0 pyparsing-2.4.6 pytest-3.8.2 pytest-cov-2.8.1 python-chess-0.29.0 python-lichess-0.9 requests-2.22.0 scipy-1.2.2 zipp-0.6.0 zope.event-4.4 zope.schema-4.9.3

Test

scripts/test 
============================= test session starts =============================
platform linux -- Python 3.6.8, pytest-5.2.1, py-1.8.0, pluggy-0.13.0
rootdir: /home/wf/source/python/play-chess-with-a-webcam
plugins: cov-2.8.1
collected 11 items                                                            

src/test_Board.py .                                                     [  9%]
src/test_ChessCam.py .                                                  [ 18%]
src/test_OpenCV_version.py .                                            [ 27%]
src/test_Video.py ...                                                   [ 54%]
src/test_findBoard.py .....                                             [100%]

----------- coverage: platform linux, python 3.6.8-final-0 -----------
Name                         Stmts   Miss  Cover
------------------------------------------------
src/Args.py                     10      7    30%
src/Board.py                    33      3    91%
src/BoardFinder.py             186     12    94%
src/Cell.py                     10      4    60%
src/ChessCam.py                 86     59    31%
src/InputManager.py             57     37    35%
src/MovementDetector.py         55     40    27%
src/StateDetector.py            92     75    18%
src/Video.py                   133     48    64%
src/mathUtils.py                49     25    49%
src/test_Board.py               23      3    87%
src/test_ChessCam.py             4      0   100%
src/test_OpenCV_version.py       6      0   100%
src/test_Video.py               28      0   100%
src/test_findBoard.py           49      0   100%
------------------------------------------------
TOTAL                          821    313    62%


============================= 11 passed in 32.41s =============================

Raspbian 10 buster

Modify requirements.txt

As of 2019-12 there is no current opencv for Raspbian and a few work-arounds are necessary. 

git diff
diff --git a/pcwawc/requirements.txt b/pcwawc/requirements.txt
index 019d524..a277b59 100644
--- a/pcwawc/requirements.txt
+++ b/pcwawc/requirements.txt
@@ -3,7 +3,7 @@
 # runtime dependencies
 #
 # https://opencv-python-tutroals.readthedocs.io/en/latest/py_tutorials/py_tutorials.html
-opencv-python==4.1.2.30
+opencv-python==4.1.*
 # python-chess
 # https://buildmedia.readthedocs.org/media/pdf/python-chess/latest/python-chess.pdf
 python-chess==0.29.0

Install

scripts/install 
...
# to avoid warning later 
pip3 install --no-cache-dir cairocffi

Issue undefined symbol: __atomic_fetch_add_8

If you get: 

undefined symbol: __atomic_fetch_add_8

define this: 

export LD_PRELOAD=/usr/lib/arm-linux-gnueabihf/libatomic.so.1.2.0

Test

scripts/run --input ../Chess-Testmedia/TK_scholarsmate30.avi --event 'PlayChessWithaWebCam' --site 'Stuttgart-Germany' --black OTB1 --white OTB2 --round 1 --warp '[[81,18],[271,15],[268,203],[85,203]]' --rotation 90 --nomoves
/usr/local/lib/python3.7/dist-packages/matplotlib/backends/backend_gtk3agg.py:16: UserWarning: The Gtk3Agg backend is known to not work on Python 3.x with pycairo. Try installing cairocffi.
  "The Gtk3Agg backend is known to not work on Python 3.x with pycairo. "
[Event "PlayChessWithaWebCam"]
[Site "Stuttgart-Germany"]
[Date "2019-12-28 20:17:35"]
[Round "1"]
[White "OTB2"]
[Black "OTB1"]
[Result "1-0"]

1. e4 e5 2. Qh5 Nc6 3. Bc4 Nf6 4. Qxf7# 1-0

Raspbian 9.8 stretch (not successful)

Install

if the install fails e.g. with an Exception in urlopen you might want to restart the install. 

scripts/install 
checking that python3  is installed on os Linux ...
/usr/bin/python3
checking that pip3  is installed on os Linux ...
/usr/bin/pip3
Collecting opencv-python (from -r requirements.txt (line 2))
  Using cached https://www.piwheels.org/simple/opencv-python/opencv_python-3.4.4.19-cp35-cp35m-linux_armv7l.whl
Collecting pytest (from -r requirements.txt (line 4))
  Using cached https://files.pythonhosted.org/packages/0c/91/d68f68ce54cd3e8afa1ef73ea1ad44df2438521b64c0820e5fd9b9f13b7d/pytest-5.2.1-py3-none-any.whl
Collecting matplotlib (from -r requirements.txt (line 6))
  Using cached https://www.piwheels.org/simple/matplotlib/matplotlib-3.0.3-cp35-cp35m-linux_armv7l.whl
Collecting scipy (from -r requirements.txt (line 8))
  Using cached https://www.piwheels.org/simple/scipy/scipy-1.3.1-cp35-cp35m-linux_armv7l.whl
Collecting pytest-cov (from -r requirements.txt (line 10))
  Using cached https://files.pythonhosted.org/packages/b9/54/3673ee8be482f81527678ac894276223b9814bb7262e4f730469bb7bf70e/pytest_cov-2.8.1-py2.py3-none-any.whl
Collecting python-chess (from -r requirements.txt (line 12))
  Using cached https://files.pythonhosted.org/packages/58/70/72dc875a30ac7f26e0bec45714d67b19e0f498de920323b906995a741a88/python_chess-0.28.3-py3-none-any.whl
Requirement already satisfied: numpy>=1.12.1 in /usr/lib/python3/dist-packages (from opencv-python->-r requirements.txt (line 2))
Collecting pathlib2>=2.2.0; python_version < "3.6" (from pytest->-r requirements.txt (line 4))
  Downloading https://files.pythonhosted.org/packages/e9/45/9c82d3666af4ef9f221cbb954e1d77ddbb513faf552aea6df5f37f1a4859/pathlib2-2.3.5-py2.py3-none-any.whl
Collecting packaging (from pytest->-r requirements.txt (line 4))
  Downloading https://files.pythonhosted.org/packages/cf/94/9672c2d4b126e74c4496c6b3c58a8b51d6419267be9e70660ba23374c875/packaging-19.2-py2.py3-none-any.whl
Collecting atomicwrites>=1.0 (from pytest->-r requirements.txt (line 4))
  Downloading https://files.pythonhosted.org/packages/52/90/6155aa926f43f2b2a22b01be7241be3bfd1ceaf7d0b3267213e8127d41f4/atomicwrites-1.3.0-py2.py3-none-any.whl
Collecting pluggy<1.0,>=0.12 (from pytest->-r requirements.txt (line 4))
  Downloading https://files.pythonhosted.org/packages/92/c7/48439f7d5fd6bddb4c04b850bb862b42e3e2b98570040dfaf68aedd8114b/pluggy-0.13.0-py2.py3-none-any.whl
Collecting py>=1.5.0 (from pytest->-r requirements.txt (line 4))
  Downloading https://files.pythonhosted.org/packages/76/bc/394ad449851729244a97857ee14d7cba61ddb268dce3db538ba2f2ba1f0f/py-1.8.0-py2.py3-none-any.whl (83kB)
    100% |████████████████████████████████| 92kB 2.1MB/s 
Collecting importlib-metadata>=0.12; python_version < "3.8" (from pytest->-r requirements.txt (line 4))
  Downloading https://files.pythonhosted.org/packages/f6/d2/40b3fa882147719744e6aa50ac39cf7a22a913cbcba86a0371176c425a3b/importlib_metadata-0.23-py2.py3-none-any.whl
Collecting attrs>=17.4.0 (from pytest->-r requirements.txt (line 4))
  Downloading https://files.pythonhosted.org/packages/a2/db/4313ab3be961f7a763066401fb77f7748373b6094076ae2bda2806988af6/attrs-19.3.0-py2.py3-none-any.whl
Collecting wcwidth (from pytest->-r requirements.txt (line 4))
  Downloading https://files.pythonhosted.org/packages/7e/9f/526a6947247599b084ee5232e4f9190a38f398d7300d866af3ab571a5bfe/wcwidth-0.1.7-py2.py3-none-any.whl
Collecting more-itertools>=4.0.0 (from pytest->-r requirements.txt (line 4))
  Downloading https://files.pythonhosted.org/packages/45/dc/3241eef99eb45f1def35cf93af35d1cf9ef4c0991792583b8f33ea41b092/more_itertools-7.2.0-py3-none-any.whl (57kB)
    100% |████████████████████████████████| 61kB 2.0MB/s 
Collecting kiwisolver>=1.0.1 (from matplotlib->-r requirements.txt (line 6))
  Downloading https://www.piwheels.org/simple/kiwisolver/kiwisolver-1.1.0-cp35-cp35m-linux_armv7l.whl (912kB)
    100% |████████████████████████████████| 921kB 344kB/s 
Collecting pyparsing!=2.0.4,!=2.1.2,!=2.1.6,>=2.0.1 (from matplotlib->-r requirements.txt (line 6))
  Downloading https://files.pythonhosted.org/packages/11/fa/0160cd525c62d7abd076a070ff02b2b94de589f1a9789774f17d7c54058e/pyparsing-2.4.2-py2.py3-none-any.whl (65kB)
    100% |████████████████████████████████| 71kB 2.1MB/s 
Collecting python-dateutil>=2.1 (from matplotlib->-r requirements.txt (line 6))
  Downloading https://files.pythonhosted.org/packages/41/17/c62faccbfbd163c7f57f3844689e3a78bae1f403648a6afb1d0866d87fbb/python_dateutil-2.8.0-py2.py3-none-any.whl (226kB)
    100% |████████████████████████████████| 235kB 1.2MB/s 
Collecting cycler>=0.10 (from matplotlib->-r requirements.txt (line 6))
  Downloading https://files.pythonhosted.org/packages/f7/d2/e07d3ebb2bd7af696440ce7e754c59dd546ffe1bbe732c8ab68b9c834e61/cycler-0.10.0-py2.py3-none-any.whl
Collecting coverage>=4.4 (from pytest-cov->-r requirements.txt (line 10))
  Downloading https://www.piwheels.org/simple/coverage/coverage-4.5.4-cp35-cp35m-linux_armv7l.whl (210kB)
    100% |████████████████████████████████| 215kB 538kB/s 
Requirement already satisfied: six in /usr/lib/python3/dist-packages (from pathlib2>=2.2.0; python_version < "3.6"->pytest->-r requirements.txt (line 4))
Collecting zipp>=0.5 (from importlib-metadata>=0.12; python_version < "3.8"->pytest->-r requirements.txt (line 4))
  Downloading https://files.pythonhosted.org/packages/74/3d/1ee25a26411ba0401b43c6376d2316a71addcc72ef8690b101b4ea56d76a/zipp-0.6.0-py2.py3-none-any.whl
Requirement already satisfied: setuptools in /usr/lib/python3/dist-packages (from kiwisolver>=1.0.1->matplotlib->-r requirements.txt (line 6))
Installing collected packages: opencv-python, pathlib2, pyparsing, packaging, atomicwrites, more-itertools, zipp, importlib-metadata, pluggy, py, attrs, wcwidth, pytest, kiwisolver, python-dateutil, cycler, matplotlib, scipy, coverage, pytest-cov, python-chess
Successfully installed atomicwrites-1.3.0 attrs-19.3.0 coverage-4.5.4 cycler-0.10.0 importlib-metadata-0.23 kiwisolver-1.1.0 matplotlib-3.0.3 more-itertools-7.2.0 opencv-python-3.4.4.19 packaging-19.2 pathlib2-2.3.5 pluggy-0.13.0 py-1.8.0 pyparsing-2.4.2 pytest-5.2.1 pytest-cov-2.8.1 python-chess-0.28.3 python-dateutil-2.8.0 scipy-1.3.1 wcwidth-0.1.7 zipp-0.6.0

Test

if you run into the ImportError: libcblas.so.3: cannot open shared object file: No such file or directory error you might want to run both lines otherwise simply try the test script itself 

pip3 install opencv-python; sudo apt-get install -y libcblas-dev libhdf5-dev libhdf5-serial-dev libatlas-base-dev libjasper-dev  libqtgui4  libqt4-test

run tests 

scripts/test
...
ImportError: numpy.core.multiarray failed to import

The issue is that this project needs Python3.7 to work which can only be installed manually by compiling on stretch at this time (which i didn't try out ...)

Windows 7/10

  1. Download Python 3.7.3 from https://www.python.org/downloads/release/python-373/
    1. https://www.python.org/ftp/python/3.7.3/python-3.7.3-amd64.exe

Alternative: Install via Linux Subsystem

This installation uses a "hybrid approach" - we install the web elements e.g. javascript/css/fonts via bash script and then use the Windows native python and pip to proceed.

then follow the linux instructions 

sudo apt-get update
sudo apt-get upgrade
sudo apt-get install xdg-utils

Access files via Z: 

cd pcwawc
pip install -r requirements.txt
cd ..
set PYTHONPATH=.;%PYTHONPATH%;
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