зеркало из https://github.com/mozilla/gecko-dev.git
37 строки
1.5 KiB
Markdown
37 строки
1.5 KiB
Markdown
# qcms
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[](https://crates.io/crates/qcms)
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[](https://docs.rs/qcms)
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Firefox's library for transforming image data between ICC profiles.
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## Example
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```rust
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// Decode the jpeg
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let mut d = jpeg_decoder::Decoder::new(std::fs::File::open("/Users/jrmuizel/Desktop/DSCF2460.jpg").unwrap());
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let mut data = d.decode().unwrap();
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let info = d.info().unwrap();
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// Extract the profile after decode
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let profile = d.icc_profile().unwrap();
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// Create a new qcms Profile
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let input = qcms::Profile::new_from_slice(&profile).unwrap();
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let mut output = qcms::Profile::new_sRGB();
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output.precache_output_transform();
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// Create a transform between input and output profiles and apply it.
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let xfm = qcms::Transform::new(&input, &output, qcms::DataType::RGB8, qcms::Intent::default()).unwrap();
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xfm.apply(&mut data);
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// write the result to a PNG
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let mut encoder = png::Encoder::new(std::fs::File::create("out.png").unwrap(), info.width as u32, info.height as u32);
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encoder.set_color(png::ColorType::Rgb);
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encoder.set_srgb(png::SrgbRenderingIntent::Perceptual);
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let mut writer = encoder.write_header().unwrap();
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writer.write_image_data(&data).unwrap(); // Save
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```
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This library was originally written in C, was converted to Rust using [c2rust](https://c2rust.com/), and then refactored to be mostly
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safe and more idiomatic Rust.
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