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Merge pull request #16085 from alalek:imgproc_threshold_to_zero_ipp_bug

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* imgproc(IPP): wrong result from threshold(THRESH_TOZERO)

* imgproc(IPP): disable IPP code to pass THRESH_TOZERO test
This commit is contained in:
Alexander Alekhin
2019-12-09 14:51:02 +03:00
committed by GitHub
parent 629d47fcd8
commit 734de34b7a
2 changed files with 11 additions and 0 deletions
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modules/imgproc/src/thresh.cpp
+2
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@@ -774,6 +774,7 @@ thresh_32f( const Mat& _src, Mat& _dst, float thresh, float maxval, int type )
}
setIppErrorStatus();
break;
#if 0 // details: https://github.com/opencv/opencv/pull/16085
case THRESH_TOZERO:
if (0 <= CV_INSTRUMENT_FUN_IPP(ippiThreshold_LTVal_32f_C1R, src, (int)src_step*sizeof(src[0]), dst, (int)dst_step*sizeof(dst[0]), sz, thresh + FLT_EPSILON, 0))
{
@@ -782,6 +783,7 @@ thresh_32f( const Mat& _src, Mat& _dst, float thresh, float maxval, int type )
}
setIppErrorStatus();
break;
#endif
case THRESH_TOZERO_INV:
if (0 <= CV_INSTRUMENT_FUN_IPP(ippiThreshold_GTVal_32f_C1R, src, (int)src_step*sizeof(src[0]), dst, (int)dst_step*sizeof(dst[0]), sz, thresh, 0))
{