Fixed cvExtractSURF in case of no keypoints found #2076

13 years ago · e8b0d27942
parent d60b1f2f82
commit e8b0d27942
1 changed files with 18 additions and 18 deletions
--- a/modules/legacy/src/features2d.cpp
+++ b/modules/legacy/src/features2d.cpp
@ -89,7 +89,7 @@ cvExtractSURF( const CvArr* _img, const CvArr* _mask,
        *_keypoints = cvCreateSeq(0, sizeof(CvSeq), sizeof(CvSURFPoint), storage);
    if( _descriptors )
-        *_descriptors = cvCreateSeq(0, sizeof(CvSeq), descr.cols*descr.elemSize(), storage);
+        *_descriptors = cvCreateSeq(0, sizeof(CvSeq), surf->descriptorSize() * CV_ELEM_SIZE(surf->descriptorType()), storage);
    for( size_t i = 0; i < kpt.size(); i++ )
    {