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safer convolution

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Antonin Portelli
2025-06-27 15:58:47 +01:00
parent fef0f3704c
commit b0782552d1
1 changed files with 4 additions and 0 deletions
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4
lib/LatAnalyze/Numerical/DWT.cpp
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@ -38,6 +38,10 @@ void filterConvolution(MatType &out, const MatType &data,
{ {
Index n = data.rows(), nf = n*filter.size(); Index n = data.rows(), nf = n*filter.size();
if (&out == &data)
{
LATAN_ERROR(Argument, "filter convolution does not support in-place operation");
}
out.resizeLike(data); out.resizeLike(data);
out.fill(0.); out.fill(0.);
for (unsigned int i = 0; i < filter.size(); ++i) for (unsigned int i = 0; i < filter.size(); ++i)