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Update imgwarp.cpp

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Check for identity resize => use copy instead (1.37 ms -> 0.07 ms on 720p)
This commit is contained in:
grundman 2015-12-07 11:25:39 -08:00
parent 7172c16435
commit 5772cb52e3
1 changed files with 6 additions and 0 deletions
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6
modules/imgproc/src/imgwarp.cpp
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@ -3257,6 +3257,12 @@ void cv::resize( InputArray _src, OutputArray _dst, Size dsize,
Mat src = _src.getMat();
_dst.create(dsize, src.type());
Mat dst = _dst.getMat();
if (dsize == ssize) {
// Source and destination are of same size. Use simple copy.
src.copyTo(dst);
return;
}
#ifdef HAVE_TEGRA_OPTIMIZATION
if (tegra::useTegra() && tegra::resize(src, dst, (float)inv_scale_x, (float)inv_scale_y, interpolation))