Raspberry PI Chessboard Camera: Difference between revisions

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= Projects =
= Projects =
{{Link|target=CV_Chess}}
# {{Link|target=PlayChessWithAWebCam}}
 
# {{Link|target=CV_Chess}}
== play-chess-with-a-webcam ==
* http://blogdugas.net/blog/2015/05/18/play-chess-with-a-webcam
see github fork at
* https://github.com/WolfgangFahl/play-chess-with-a-webcam
 
Written in python2 migrated to python3.7.
see https://unix.stackexchange.com/a/410851/38701 for selection your python version on Ubuntu
 
=== Code Structure ===
<uml>
hide circle
package Exceptions <<Rectangle>> {
  class ArenaQuit
  Exception <|-- ArenaQuit
 
  class BadImage
  BadImage --|> Exception
 
  class BadSegmentation
  BadSegmentation --|> Exception
 
  class CannotBuildStateException
  CannotBuildStateException --|> Exception
 
  class RejectedMove
  RejectedMove --|> Exception
 
  class UserExit
  UserExit --|> Exception
}
 
package PlayChessWithAWebCam {
  note top of Args: This class parses command line arguments and generates a usage.
  class Args {
    __init__(args)
  }
 
  class BoardFinder {
    getDominatorOffset()
    updateImage(inFrame)
    DetectBoardOrientation()
    GetChessBoardCoordinates(rotation)
    LineCrossingDetection()
    GetFullImageBoard(rectCoordinates=None, rotations=None)
    _getBlackMaxSide(colorImage)
    rotateImage(image)
  }
  class Cell {
  }
  note top of ChessCam: Chess Camera get next move by analyzing movements.
class ChessCam {
  prepare(args)
  __init__()
  playChessWithCam(args)
  getNextMove()
  getDominatorOffset()
  detectMovement()
  playChessWithCamMoves()
}
 
 
 
  note top of GameEngine: This class is used to change the game state using StateClass.\nIt also communicates moves with the chess ai facade \\nand an observer to detect if a move have been played by an ai.
  class GameEngine {
    play()
    mainLoop()
  }
  class InputManager
  class MovementDetector
  note top of State: This class is used to remember the pieces positions and the current player's color which player needs to play).
class State {
  _move(fromCell,toCell)
  _validateMove(fromCell,toCell)
  _sameColor(c1,c2)
  _switchTurn()
  moveCam(move)
  _tryToPromote(c)
  _castle(fromCell,toCell)
  _eat(fromCell,toCell)
  _initBoard()
  __init__(dominatorOffset)
  _emptyCell(c)
  _partMoves(move)
}
 
  class StateDetector {
    _divideInCells()
    detectState(colorImage)
    _findIntersects()
  }
 
  note top of Uci: This class interacts with stdin and stdout with Arena in the UCI convention in order to communicate chess moves.
  class Uci {
    sendMove(move)
    getResponse()
    _setPosition(tokens)
  }
 
  class Video {
    __init__()
    record(prefix,printHints=True)
    open(filePath)
    drawLines(image,lines)
    houghTransform(image)
    checkFilePath(filePath,raiseException=True)
    sumIntensity(image)
    readFrame(show=False)
    getSubRect(image,rect)
    timeStamp()
    play()
    setup(cap)
    showImage(image,title,keyCheck=True,keyWait=5)
    checkCap()
    capture(device)
    createBlank(width,height,rgb_color)
    close()
    readImage(filePath)
    still(prefix,format="jpg",printHints=True)
  }
 
}
GameEngine -- ChessCam
GameEngine -- State
GameEngine -- Uci
Uci -- ArenaQuit
ChessCam -- BoardFinder
ChessCam -- MovementDetector
ChessCam -- InputManager
ChessCam -- UserExit
BoardFinder -- Video
MovementDetector -- StateDetector
MovementDetector -- BadImage
StateDetector - Cell
note top of State: This class is used to remember the pieces positions and the current player's color which player needs to play.
State -- RejectedMove
InputManager - Args
</uml>


= UCI compatible GUIs =
= UCI compatible GUIs =

Revision as of 15:02, 21 October 2019

Chessboard Move Recorder

see e.g. https://chess.stackexchange.com/questions/4695/tools-for-automated-notation-webcam-movie-to-pgn/26643#26643

Motivation

see MagneticSensorChessBoard1987

Parts List

# picture part example sources documents ~ price
1 https://www.schachversand-ullrich.de/media/image/d3/fb/c5/Brett-Bundesliga_200x200.jpg Chessboard

Schachversand Ullrich

Wikipedia 25 €
2 https://www.schachversand-ullrich.de/media/image/37/70/16/Bundesliga57f787924d743_200x200.jpg Chess pieces

Schachversand Ullrich

Wikipedia 25 €
3 Raspberry Pi 3 Model B.png Raspberry PI

Amazon

Wikipedia 45 €
4 LogitechC615.jpeg Web Camera

Amazon

Raspberry PI compatibility list (german) 60 €
5 71KECb7RmVL. SX679 .jpg USB Powerbank

Amazon

15 €
6 613RrJEZYPL. SL1000 .jpg 16 GByte Micro SD Card

Amazon

5 €

Pictures

First Prototype

SAM 9947.JPG SAM 9949.JPG SAM 9951.JPG Chess34563.jpg

Second Prototype

SAM 9955.JPG SAM 9962.JPG

Installation

see

Projects

  1. PlayChessWithAWebCam
  2. CV_Chess

UCI compatible GUIs

XBoard

sudo apt-get install xboard polyglot stockfish
xboard -fUCI -fcp stockfish -sUCI -scp stockfish

XBoard2019-10-19.png

Open Source Projects

Commercial

Links

Videos

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