import { keySheet } from './src/lib/core/mask.js';
const data = new Uint8ClampedArray(4 * 4);
data[0]=139; data[1]=90; data[2]=43; data[3]=255;
data[4]=34; data[5]=139; data[6]=34; data[7]=255;
data[8]=34; data[9]=139; data[10]=34; data[11]=255;
data[12]=34; data[13]=139; data[14]=34; data[15]=255;
const m = keySheet(data, { sheet:'green', sensitivity:50 });
console.log('mask for 4 px (1 slab, 3 sheet):', Array.from(m));