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fixed SIFT when keypoints vector is empty (#1162)

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Maria Dimashova 2011-07-08 15:54:57 +00:00
parent fbed6d1d44
commit 0b1575c485
1 changed files with 2 additions and 1 deletions
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3
modules/features2d/src/sift.cpp
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@ -1722,7 +1722,8 @@ void SIFT::operator()(const Mat& image, const Mat& mask,
KeyPointsFilter::removeDuplicated( keypoints );
// Compute descriptors.
cvSeqRemoveSlice( featuresSeq, cvSlice(0, featuresSeq->total) );
if( featuresSeq->total > 0 )
cvSeqRemoveSlice( featuresSeq, cvSlice(0, featuresSeq->total) );
}
for( size_t i = 0; i < keypoints.size(); i++ )