image-js/lib/node_modules/test/binary.js

Image processing and manipulation in JavaScript

'use strict';

const {
  Image
} = require('./common');
module.exports = function binary([str]) {
  let lines = str.split(/\r?\n/).map(line => line.trim()).filter(line => line);
  let width = lines[0].length;
  let height = lines.length;
  const trimmed = lines.join('');
  const data = new Uint8Array(Math.ceil(trimmed.length / 8));
  for (let i = 0; i < trimmed.length; i += 8) {
    const index = i / 8;
    data[index] = parseInt(trimmed.substr(i, 8).padEnd(8, '0'), 2);
  }
  return new Image(width, height, data, {
    kind: 'BINARY'
  });
};