fattal: correctly crop the image to the dimensions required for distortion correction
Fix for #4187
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@@ -697,7 +697,7 @@ void Crop::update (int todo)
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int fh = skips(parent->fh, skip);
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bool need_cropping = false;
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if (cropx || cropy || trafw != fw || trafh != fh) {
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if (trafx || trafy || trafw != fw || trafh != fh) {
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need_cropping = true;
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// fattal needs to work on the full image. So here we get the full
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// image from imgsrc, and replace the denoised crop in case
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@@ -710,8 +710,8 @@ void Crop::update (int todo)
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if (params.dirpyrDenoise.enabled) {
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// copy the denoised crop
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int oy = cropy / skip;
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int ox = cropx / skip;
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int oy = trafy / skip;
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int ox = trafx / skip;
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#ifdef _OPENMP
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#pragma omp parallel for
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#endif
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@@ -737,9 +737,9 @@ void Crop::update (int todo)
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#ifdef _OPENMP
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#pragma omp parallel for
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#endif
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for (int y = 0; y < croph; ++y) {
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for (int y = 0; y < trafh; ++y) {
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int cy = y + oy;
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for (int x = 0; x < cropw; ++x) {
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for (int x = 0; x < trafw; ++x) {
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int cx = x + ox;
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c->r(y, x) = f->r(cy, cx);
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c->g(y, x) = f->g(cy, cx);
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