![]() ![]() The function "drawChessboardCorners()" draws individual chessboard corners detected either as red circles if the board was not found, or as colored corners connected with lines if the board was found. You also may use the function cornerSubPix() with different parameters if returned coordinates are not accurate enough. The detected coordinates are approximate, and to determine their positions more accurately, the function calls cornerSubPix(). ![]() For example, a regular chessboard has 8 x 8 squares and 7 x 7 internal corners, that is, points where the black squares touch each other. Otherwise, if the function fails to find all the corners or reorder them, it returns 0. The function returns a non-zero value if all of the corners are found and they are placed in a certain order (row by row, left to right in every row). The function "findChessboardCorners()" attempts to determine whether the input image is a view of the chessboard pattern and locate the internal chessboard corners. I have to write a camera-calibration an wanted to use python and opencv. (a documentation generation tool) and pdflatex (if you want to create a PDF version of it). ![]() Finds the positions of internal corners of the chessboard and then renders the detected chessboard corners: Global Functions void cv:: Online documentation. ![]()
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