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Switch to the libvips crop strategy implementations

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Lovell Fuller
2017-05-06 14:46:28 +01:00
parent 2f534dc01c
commit 36078f9903
8 changed files with 15 additions and 156 deletions
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20
src/pipeline.cc
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@@ -509,24 +509,20 @@ class PipelineWorker : public Nan::AsyncWorker {
->set("background", background));
} else if (baton->canvas != Canvas::IGNORE_ASPECT) {
// Crop/max/min
int left;
int top;
if (baton->crop < 9) {
// Gravity-based crop
int left;
int top;
std::tie(left, top) = sharp::CalculateCrop(
image.width(), image.height(), baton->width, baton->height, baton->crop);
} else if (baton->crop == 16) {
// Entropy-based crop
std::tie(left, top) = sharp::Crop(image, baton->width, baton->height, sharp::EntropyStrategy());
int width = std::min(image.width(), baton->width);
int height = std::min(image.height(), baton->height);
image = image.extract_area(left, top, width, height);
} else {
// Attention-based crop
std::tie(left, top) = sharp::Crop(image, baton->width, baton->height, sharp::AttentionStrategy());
// Attention-based or Entropy-based crop
image = image.smartcrop(baton->width, baton->height, VImage::option()
->set("interesting", baton->crop == 16 ? VIPS_INTERESTING_ENTROPY : VIPS_INTERESTING_ATTENTION));
}
int width = std::min(image.width(), baton->width);
int height = std::min(image.height(), baton->height);
image = image.extract_area(left, top, width, height);
baton->cropCalcLeft = left;
baton->cropCalcTop = top;
}
}