glitch-canvas/src/output/toImageData.js

JavaScript library for applying a glitch effect to a canvas element

import loadBase64Image from '../util/loadBase64Image';
import canvasFromImage from '../util/canvasFromImage';
import getImageSize from '../util/getImageSize';

export default function (base64URL, options, resolve, reject) {
	loadBase64Image(base64URL).then(image => {
		const size = getImageSize(image);
		const imageData = canvasFromImage(image).ctx.getImageData(
			0,
			0,
			size.width,
			size.height
		);

		if (!imageData.width) {
			imageData.width = size.width;
		}

		if (!imageData.height) {
			imageData.height = size.height;
		}

		resolve(imageData);
	}, reject);
}