PlayChessWithAWebCam

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

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 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

histogramm / colorcluster

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

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

• https://github.com/jayhack/CVChess
• https://classes.engineering.wustl.edu/ese205/core/index.php?title=CV_Chess
• https://github.com/swenae/chesscam
• https://github.com/Rr9/ChessStory
• https://github.com/FabioBCI/pyChess
• http://www.romanmueller.de/chesscamera
• https://github.com/TheKrystek/ChessCam
• https://gitlab.fing.edu.uy/aricca/chessTrack
• https://github.com/maciejczyzewski/neural-chessboard
• https://github.com/jialinding/ChessVision
• https://github.com/SukritGupta17/Chess-Board-Recognition
• http://chessgrabber.nicolaas.net

Commercial

• http://webcamchess.fr/

Links

• https://en.wikipedia.org/wiki/Universal_Chess_Interface
• https://en.wikipedia.org/wiki/Chess_symbols_in_Unicode
• https://buildmedia.readthedocs.org/media/pdf/python-chess/
• https://en.chessbase.com/post/how-to-build-your-own-usb-electronic-che-board
• https://www.raspberrypi.org/magpi/chess-board-raspberry-pi/

• https://hobbylark.com/board-games/Top-5-Free-Chess-GUIs-for-UCI-Engines
• https://github.com/ornicar/lila
• https://www.chessprogramming.org
• https://www.chessprogramming.org/UCI
• https://www.chessprogramming.org/Piece_Recognition
• http://www.nandanbanerjee.com/index.php?option=com_content&view=article&id=71:buttercup-chess-robot&catid=78&Itemid=470
• http://cs.uef.fi/~franti/chesscam/
• https://www.fide.com/contacts
• https://www.kickstarter.com/projects/infivention/square-off-worlds-smartest-chess-board-relaunched
• https://www.heise.de/make/projekte/ChessCamera-Schachcomputer-mit-Bilderkennung-2170835.html
• http://usbchessboard.yolasite.com/
• https://en.chessbase.com/post/you-built-what-a-giant-robotic-chess-set
• https://ieeexplore.ieee.org/abstract/document/6727033
• http://wiki.ros.org/tuw_checkerboard
• http://js1k.com/2010-first/demo/750
• http://codebazaar.blogspot.com/2011/08/chess-board-recognition-project-part-1.html

Research

see also

• PlayChessWithAWebCam/Papers
• https://www.researchgate.net/project/PlayChessWithAWebCam

Stackexchange

• https://dsp.stackexchange.com/questions/24235/segmenting-and-labeling-chessboards-through-computer-vision
• https://codereview.stackexchange.com/questions/220915/python-chess-game
• https://stackoverflow.com/questions/27520991/opencv-best-way-to-detect-corners-on-chessboard
• https://stackoverflow.com/questions/5906170/detecting-chess-moves-from-successive-image-differences-using-opencv-tools
• https://chess.stackexchange.com/questions/4695/tools-for-automated-notation-webcam-movie-to-pgn/4751#4751

Source Code

play-chess-with-a-webcam

see github fork at

• https://github.com/WolfgangFahl/play-chess-with-a-webcam

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
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/opt/local/bin/pip3
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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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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

• https://unix.stackexchange.com/a/410851/38701

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
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/usr/bin/pip3
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    100% |████████████████████████████████| 28.3MB 50kB/s 
Collecting python-chess==0.29.0 (from -r requirements.txt (line 9))
  Using cached https://files.pythonhosted.org/packages/63/eb/003a6c069c0208e169165acd2d90665fa3901baab19b5fa26603d86b7193/python_chess-0.29.0-py3-none-any.whl
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Collecting Pillow==6.2.1 (from -r requirements.txt (line 29))
  Downloading https://files.pythonhosted.org/packages/89/3e/31c2e5385d7588016c6f7ac552e81c3fff2bef4bc61b6f82f8177752405c/Pillow-6.2.1-cp37-cp37m-manylinux1_x86_64.whl (2.1MB)
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  Using cached https://files.pythonhosted.org/packages/f9/80/7283dfe76ceb7eb1868cf97b8c8cb3a988f80757921341f95d5420de2a6e/Interface-2.11.1.tar.gz
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  Using cached https://files.pythonhosted.org/packages/08/e0/a4945a06380802264b3416d788ad607588c334662b6cd0af54144c45912d/pytest-3.8.2-py2.py3-none-any.whl
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  Downloading https://files.pythonhosted.org/packages/52/46/ff47fea8e5c528c497fc385c95887131c4319a3411814ba9a766b66a9367/matplotlib-2.2.3-cp37-cp37m-manylinux1_x86_64.whl (12.6MB)
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Collecting pytest-cov==2.8.1 (from -r requirements.txt (line 50))
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Collecting numpy>=1.14.5 (from opencv-python==4.1.2.30->-r requirements.txt (line 6))
  Downloading https://files.pythonhosted.org/packages/20/53/127cb49435bcf5d841baf8eafa030931c62a9eac577a641f8c2293d23371/numpy-1.18.0-cp37-cp37m-manylinux1_x86_64.whl (20.1MB)
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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
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  Using cached https://files.pythonhosted.org/packages/76/bc/394ad449851729244a97857ee14d7cba61ddb268dce3db538ba2f2ba1f0f/py-1.8.0-py2.py3-none-any.whl
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  Using cached https://files.pythonhosted.org/packages/52/90/6155aa926f43f2b2a22b01be7241be3bfd1ceaf7d0b3267213e8127d41f4/atomicwrites-1.3.0-py2.py3-none-any.whl
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  Using cached https://files.pythonhosted.org/packages/a0/28/85c7aa31b80d150b772fbe4a229487bc6644da9ccb7e427dd8cc60cb8a62/pluggy-0.13.1-py2.py3-none-any.whl
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  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))
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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)
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Collecting pyparsing!=2.0.4,!=2.1.2,!=2.1.6,>=2.0.1 (from matplotlib==2.2.3->-r requirements.txt (line 46))
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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)
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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 

• https://github.com/EdjeElectronics/TensorFlow-Object-Detection-on-the-Raspberry-Pi/issues/67

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))
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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))
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Collecting py>=1.5.0 (from pytest->-r requirements.txt (line 4))
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    100% |████████████████████████████████| 92kB 2.1MB/s 
Collecting importlib-metadata>=0.12; python_version < "3.8" (from pytest->-r requirements.txt (line 4))
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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))
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    100% |████████████████████████████████| 61kB 2.0MB/s 
Collecting kiwisolver>=1.0.1 (from matplotlib->-r requirements.txt (line 6))
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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.

• see https://docs.microsoft.com/de-de/windows/wsl/install-win10 with Ubuntu from the Microsoft Store

then follow the linux instructions

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

Access files via Z:

• https://superuser.com/a/1502631/166461

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