54 lines
1.1 KiB
JavaScript
54 lines
1.1 KiB
JavaScript
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/*
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The JzAzBz color space.
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Based on:
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Muhammad Safdar, Guihua Cui, Youn Jin Kim, and Ming Ronnier Luo,
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"Perceptually uniform color space for image signals
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including high dynamic range and wide gamut,"
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Opt. Express 25, 15131-15151 (2017)
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https://doi.org/10.1364/OE.25.015131
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*/
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import convertXyz65ToJab from './convertXyz65ToJab.js';
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import convertJabToXyz65 from './convertJabToXyz65.js';
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import convertRgbToJab from './convertRgbToJab.js';
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import convertJabToRgb from './convertJabToRgb.js';
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import { interpolatorLinear } from '../interpolate/linear.js';
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import { fixupAlpha } from '../fixup/alpha.js';
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const definition = {
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mode: 'jab',
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channels: ['j', 'a', 'b', 'alpha'],
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parse: ['--jzazbz'],
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serialize: '--jzazbz',
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fromMode: {
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rgb: convertRgbToJab,
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xyz65: convertXyz65ToJab
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},
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toMode: {
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rgb: convertJabToRgb,
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xyz65: convertJabToXyz65
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},
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ranges: {
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j: [0, 0.222],
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a: [-0.109, 0.129],
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b: [-0.185, 0.134]
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},
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interpolate: {
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j: interpolatorLinear,
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a: 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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