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Ensure boolean, bandbool, extractChannel ops occur before sRGB conversion (#504)

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This commit is contained in:
Matt Hirsch 2016-07-13 14:20:50 -04:00 committed by Lovell Fuller
parent 2d500554c1
commit 15a577863a
2 changed files with 23 additions and 14 deletions
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28
src/pipeline.cc
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@ -774,20 +774,6 @@ class PipelineWorker : public AsyncWorker {
image = Normalize(image);
}
// Convert image to sRGB, if not already
if (Is16Bit(image.interpretation())) {
image = image.cast(VIPS_FORMAT_USHORT);
}
if (image.interpretation() != VIPS_INTERPRETATION_sRGB) {
image = image.colourspace(VIPS_INTERPRETATION_sRGB);
// Transform colours from embedded profile to sRGB profile
if (baton->withMetadata && HasProfile(image)) {
image = image.icc_transform(const_cast<char*>(srgbProfile.data()), VImage::option()
->set("embedded", TRUE)
);
}
}
// Apply bitwise boolean operation between images
if (baton->booleanOp != VIPS_OPERATION_BOOLEAN_LAST &&
(baton->booleanBufferInLength > 0 || !baton->booleanFileIn.empty())) {
@ -840,6 +826,20 @@ class PipelineWorker : public AsyncWorker {
image = image.extract_band(baton->extractChannel);
}
// Convert image to sRGB, if not already
if (Is16Bit(image.interpretation())) {
image = image.cast(VIPS_FORMAT_USHORT);
}
if (image.interpretation() != VIPS_INTERPRETATION_sRGB) {
image = image.colourspace(VIPS_INTERPRETATION_sRGB);
// Transform colours from embedded profile to sRGB profile
if (baton->withMetadata && HasProfile(image)) {
image = image.icc_transform(const_cast<char*>(srgbProfile.data()), VImage::option()
->set("embedded", TRUE)
);
}
}
// Override EXIF Orientation tag
if (baton->withMetadata && baton->withMetadataOrientation != -1) {
SetExifOrientation(image, baton->withMetadataOrientation);

9
test/unit/extractChannel.js
View File

@ -69,4 +69,13 @@ describe('Image channel extraction', function() {
});
});
it('Non-existant channel', function(done) {
sharp(fixtures.inputPng)
.extractChannel(1)
.toBuffer(function(err) {
assert(err instanceof Error);
done();
});
});
});