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canny: disallow broken inplace arguments

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This commit is contained in:
Alexander Alekhin 2017-06-30 19:32:16 +03:00
parent a84a5e8f1a
commit cdf2a59afa
1 changed files with 3 additions and 0 deletions
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modules/imgproc/src/canny.cpp
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@ -972,6 +972,9 @@ void Canny( InputArray _src, OutputArray _dst,
const Size size = _src.size();
// we don't support inplace parameters in case with RGB/BGR src
CV_Assert((_dst.getObj() != _src.getObj() || _src.type() == CV_8UC1) && "Inplace parameters are not supported");
_dst.create(size, CV_8U);
if (!L2gradient && (aperture_size & CV_CANNY_L2_GRADIENT) == CV_CANNY_L2_GRADIENT)