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fixed the error in SURF when no keypoint detected

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This commit is contained in:
Liu Liu 2010-05-18 07:16:24 +00:00
parent d79c97696b
commit a69804e158
1 changed files with 8 additions and 8 deletions
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2
modules/features2d/src/surf.cpp
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@ -662,7 +662,6 @@ const float SURFInvoker::DESC_SIGMA = 3.3f;
} }
CV_IMPL void CV_IMPL void
cvExtractSURF( const CvArr* _img, const CvArr* _mask, cvExtractSURF( const CvArr* _img, const CvArr* _mask,
CvSeq** _keypoints, CvSeq** _descriptors, CvSeq** _keypoints, CvSeq** _descriptors,
@ -762,6 +761,7 @@ cvExtractSURF( const CvArr* _img, const CvArr* _mask,
} }
cvScale( &_DW, &_DW, 1./gs ); cvScale( &_DW, &_DW, 1./gs );
if ( N > 0 )
cv::parallel_for(cv::BlockedRange(0, N), cv::parallel_for(cv::BlockedRange(0, N),
cv::SURFInvoker(&params, keypoints, descriptors, img, sum, cv::SURFInvoker(&params, keypoints, descriptors, img, sum,
apt, aptw, nangle0, &DW[0][0])); apt, aptw, nangle0, &DW[0][0]));