updated sift wrapper (recalculation angles mode)

2010-05-19 16:02:30 +00:00
parent ccbe405322
commit cd81db88d5
6 changed files with 93 additions and 81 deletions
--- a/modules/features2d/src/surf.cpp
+++ b/modules/features2d/src/surf.cpp
@@ -437,7 +437,7 @@ struct SURFInvoker
            maxSize = std::max(maxSize, ((CvSURFPoint*)cvGetSeqElem( keypoints, k ))->size);
        
        maxSize = cvCeil((PATCH_SZ+1)*maxSize*1.2f/9.0f);
-        Ptr<CvMat> winbuf = cvCreateMat( 1, maxSize*maxSize, CV_8U );
+        Ptr<CvMat> winbuf = cvCreateMat( 1, maxSize > 0 ? maxSize*maxSize : 1, CV_8U );
        
        for( k = k1; k < k2; k++ )
        {