Easy access to individual pixels in ImageData.
import PixelMap from 'pixel-map';
const imageData = new ImageData(100, 100);
const pix = new PixelMap(imageData);
// Access by row and column
pix.at(0, 0).r = 255;
pix.at(0, 0).g = 0;
pix.at(0, 0).b = 0;
pix.at(0, 0).a = 255;
// Access by index
pix.atIndex(0).r = 255;
pix.atIndex(0).g = 0;
pix.atIndex(0).b = 0;
pix.atIndex(0).a = 255;