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cv::countNonZero

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This commit is contained in:
Ilya Lavrenov 2014-04-09 15:21:35 +04:00
parent e9bc737485
commit b2379b51b5
1 changed files with 28 additions and 2 deletions
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30
modules/core/src/stat.cpp
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@ -680,7 +680,8 @@ static bool ocl_countNonZero( InputArray _src, int & res )
int cv::countNonZero( InputArray _src )
{
CV_Assert( _src.channels() == 1 );
int type = _src.type(), cn = CV_MAT_CN(type);
CV_Assert( cn == 1 );
#ifdef HAVE_OPENCL
int res = -1;
@ -690,8 +691,33 @@ int cv::countNonZero( InputArray _src )
#endif
Mat src = _src.getMat();
CountNonZeroFunc func = getCountNonZeroTab(src.depth());
#if defined HAVE_IPP && !defined HAVE_IPP_ICV_ONLY
if (src.dims <= 2 || src.isContinuous())
{
IppiSize roiSize = { src.cols, src.rows };
Ipp32s count, srcstep = (Ipp32s)src.step;
IppStatus status = (IppStatus)-1;
if (src.isContinuous())
{
roiSize.width = (Ipp32s)src.total();
roiSize.height = 1;
srcstep = (Ipp32s)src.total() * CV_ELEM_SIZE(type);
}
int depth = CV_MAT_DEPTH(type);
if (depth == CV_8U)
status = ippiCountInRange_8u_C1R((const Ipp8u *)src.data, srcstep, roiSize, &count, 0, 0);
else if (depth == CV_32F)
status = ippiCountInRange_32f_C1R((const Ipp32f *)src.data, srcstep, roiSize, &count, 0, 0);
if (status >= 0)
return (Ipp32s)src.total() - count;
}
#endif
CountNonZeroFunc func = getCountNonZeroTab(src.depth());
CV_Assert( func != 0 );
const Mat* arrays[] = {&src, 0};