Function filter

pattern/canvas.js:3047–3055

(img, callback)

}

function filter(img, callback) {
    /* Returns a new Image object with the given pixel function applied to it.
     * The function takes an array of RGBA-values (base 255) and returns a new array.
     */
    var pixels = new Pixels(img);
    pixels.map(callback);
    pixels.update();
    return pixels.image();
}

/*##################################################################################################*/