Fixed cvExtractSURF in case of no keypoints found #2076

e8b0d279 · Andrey Kamaev · d60b1f2f · e8b0d279
Commit e8b0d279 authored Jun 28, 2012 by Andrey Kamaev
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features2d.cpp modules/legacy/src/features2d.cpp +1 -1

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--- 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++ )
    {