core: added inplace check in 'divSpectrums'

62c9ff25 · Alexander Alekhin · ab429d2e · 62c9ff25
Commit 62c9ff25 authored Dec 07, 2016 by Alexander Alekhin
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phasecorr.cpp modules/imgproc/src/phasecorr.cpp +3 -0

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--- a/modules/imgproc/src/phasecorr.cpp
+++ b/modules/imgproc/src/phasecorr.cpp
@@ -167,6 +167,9 @@ static void divSpectrums( InputArray _srcA, InputArray _srcB, OutputArray _dst,
    _dst.create( srcA.rows, srcA.cols, type );
    Mat dst = _dst.getMat();

+    CV_Assert(dst.data != srcA.data); // non-inplace check
+    CV_Assert(dst.data != srcB.data); // non-inplace check
+
    bool is_1d = (flags & DFT_ROWS) || (rows == 1 || (cols == 1 &&
             srcA.isContinuous() && srcB.isContinuous() && dst.isContinuous()));