зеркало из https://github.com/mozilla/gecko-dev.git
2091af5f6b
We use this when reading the output profiles to avoid the performance cost of doing the color transformation using LUTs when the output profile has them. This will let us enable ICCv4 everywhere. Differential Revision: https://phabricator.services.mozilla.com/D159273 |
||
|---|---|---|
| .. | ||
| fuzz | ||
| profiles | ||
| src | ||
| Cargo.toml | ||
| ITU-709.icc | ||
| ITU-2020.icc | ||
| README.md | ||
| moz.build | ||
| qcms.h | ||
| qcmsint.h | ||
| qcmstypes.h | ||
| sRGB_lcms.icc | ||
README.md
qcms
Firefox's library for transforming image data between ICC profiles.
Example
// Decode the jpeg
let mut d = jpeg_decoder::Decoder::new(std::fs::File::open("/Users/jrmuizel/Desktop/DSCF2460.jpg").unwrap());
let mut data = d.decode().unwrap();
let info = d.info().unwrap();
// Extract the profile after decode
let profile = d.icc_profile().unwrap();
// Create a new qcms Profile
let input = qcms::Profile::new_from_slice(&profile).unwrap();
let mut output = qcms::Profile::new_sRGB();
output.precache_output_transform();
// Create a transform between input and output profiles and apply it.
let xfm = qcms::Transform::new(&input, &output, qcms::DataType::RGB8, qcms::Intent::default()).unwrap();
xfm.apply(&mut data);
// write the result to a PNG
let mut encoder = png::Encoder::new(std::fs::File::create("out.png").unwrap(), info.width as u32, info.height as u32);
encoder.set_color(png::ColorType::Rgb);
encoder.set_srgb(png::SrgbRenderingIntent::Perceptual);
let mut writer = encoder.write_header().unwrap();
writer.write_image_data(&data).unwrap(); // Save
This library was originally written in C, was converted to Rust using c2rust, and then refactored to be mostly safe and more idiomatic Rust.