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put extra check to cv::findChessboardCorners (ticket #648)

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Vadim Pisarevsky 2010-11-09 15:45:56 +00:00
parent 7f3ae3a011
commit 9130d5bae1
1 changed files with 2 additions and 1 deletions
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modules/calib3d/src/calibinit.cpp
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@ -1904,7 +1904,8 @@ bool findChessboardCorners( const Mat& image, Size patternSize,
CvMat _image = image; CvMat _image = image;
bool ok = cvFindChessboardCorners(&_image, patternSize, bool ok = cvFindChessboardCorners(&_image, patternSize,
(CvPoint2D32f*)&corners[0], &count, flags ) > 0; (CvPoint2D32f*)&corners[0], &count, flags ) > 0;
corners.resize(count); if(count >= 0)
corners.resize(count);
return ok; return ok;
} }