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17 lines
528 B
JavaScript
17 lines
528 B
JavaScript
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/* IMPORT */
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import _ from '../utils/index.js';
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import Color from '../color/index.js';
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import adjust from './adjust.js';
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/* MAIN */
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const scale = (color, channels) => {
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const ch = Color.parse(color);
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const adjustments = {};
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const delta = (amount, weight, max) => weight > 0 ? (max - amount) * weight / 100 : amount * weight / 100;
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for (const c in channels) {
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adjustments[c] = delta(ch[c], channels[c], _.channel.max[c]);
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}
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return adjust(color, adjustments);
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};
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/* EXPORT */
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export default scale;
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