Difference between revisions of "PlayChessWithAWebCam/BoardFinder"

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Still it is very helpful and used as a basis for the BoardFinder.
 
Still it is very helpful and used as a basis for the BoardFinder.
 
=== Initializing the BoardFinder ===
 
=== Initializing the BoardFinder ===
 +
The board finder is initialized with an image. Optionally you can specify the Video instance to be used.
 
<source lang='python'>
 
<source lang='python'>
def __init__(self, image, video=None,debugImagePath="/tmp/pcwawc/"):
+
finder = BoardFinder(image,video=video)
        """ construct me from the given input image"""
 
        if video is None:
 
            video=Video()
 
        self.video=video   
 
        self.image=image
 
        self.debugImagePath=debugImagePath
 
        self.height, self.width = self.image.shape[:2]
 
 
</source>
 
</source>
  

Revision as of 07:28, 1 December 2019

Source Code

see class BoardFinder in module boardfinder tests are in the: test_BoardFinder module

Algorithm

Finding the chessboard

OpenCV has a function findChessboardCorners which is usually used for camera calibration and not really intended for the use case of "real chessboards".

Still it is very helpful and used as a basis for the BoardFinder.

Initializing the BoardFinder

The board finder is initialized with an image. Optionally you can specify the Video instance to be used.

finder = BoardFinder(image,video=video)

Examples

see testMedia source folder

ChessBoard001.jpgImage001-corners-7x7.jpg ChessBoard002.jpgImage002-corners-5x5.jpg ChessBoard003.jpgImage003-corners-4x5.jpg ChessBoard004.jpgImage004-corners-7x7.jpg ChessBoard005.jpgImage005-corners-5x5.jpg ChessBoard006.jpgImage006-corners-5x5.jpg ChessBoard007.jpgImage007-corners-5x5.jpg ChessBoard008.jpgImage008-corners-7x7.jpg ChessBoard009.jpgImage009-corners-7x7.jpg ChessBoard010.jpgImage010-corners-6x7.jpg ChessBoard011.jpgImage011-corners-7x7.jpg ChessBoard012.jpgImage012-corners-4x6.jpg ChessBoard013.jpgImage013-corners-5x7.jpg