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Merge pull request #8388 from ottogin:calib3d

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Maksim Shabunin 2017-03-15 04:33:33 +00:00
commit a83a1cafa7
1 changed files with 1 additions and 1 deletions
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modules/calib3d/src/calibinit.cpp
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@ -442,7 +442,7 @@ int cvFindChessboardCorners( const void* arr, CvSize pattern_size,
Mat img = cvarrToMat((CvMat*)arr).clone();
if( img.depth() != CV_8U || (img.channels() != 1 && img.channels() != 3) )
if( img.depth() != CV_8U || (img.channels() != 1 && img.channels() != 3 && img.channels() != 4) )
CV_Error( CV_StsUnsupportedFormat, "Only 8-bit grayscale or color images are supported" );
if( pattern_size.width <= 2 || pattern_size.height <= 2 )