40 lines
783 B
JavaScript
40 lines
783 B
JavaScript
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import { interpolatorLinear } from '../interpolate/linear.js';
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import { fixupAlpha } from '../fixup/alpha.js';
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import convertRgbToXyb from './convertRgbToXyb.js';
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import convertXybToRgb from './convertXybToRgb.js';
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/*
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The XYB color space, used in JPEG XL.
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Reference: https://ds.jpeg.org/whitepapers/jpeg-xl-whitepaper.pdf
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*/
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const definition = {
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mode: 'xyb',
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channels: ['x', 'y', 'b', 'alpha'],
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parse: ['--xyb'],
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serialize: '--xyb',
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toMode: {
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rgb: convertXybToRgb
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},
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fromMode: {
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rgb: convertRgbToXyb
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},
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ranges: {
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x: [-0.0154, 0.0281],
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y: [0, 0.8453],
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b: [-0.2778, 0.388]
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},
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interpolate: {
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x: interpolatorLinear,
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y: interpolatorLinear,
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b: interpolatorLinear,
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alpha: { use: interpolatorLinear, fixup: fixupAlpha }
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}
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};
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export default definition;
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