Method get

src/image/p5.Image.js:408–442

* @param {Number} x * @param {Number} y * @return {Number[]} color of the pixel at (x, y) in array format `[R, G, B, A]`.

(x, y, w, h)

   * @return {Number[]}      color of the pixel at (x, y) in array format `[R, G, B, A]`.
   */
  get(x, y, w, h) {
    // p5._validateParameters('p5.Image.get', arguments);
    // return Renderer2D.prototype.get.apply(this, arguments);
    const pixelsState = this._pixelsState;
    const pd = this._pixelDensity;
    const canvas = this.canvas;

    if (typeof x === 'undefined' && typeof y === 'undefined') {
    // get()
      x = y = 0;
      w = pixelsState.width;
      h = pixelsState.height;
    } else {
      x *= pd;
      y *= pd;

      if (typeof w === 'undefined' && typeof h === 'undefined') {
      // get(x,y)
        if (x < 0 || y < 0 || x >= canvas.width || y >= canvas.height) {
          return [0, 0, 0, 0];
        }

        return this._getPixel(x, y);
      }
    // get(x,y,w,h)
    }

    const region = new Image(w*pd, h*pd);
    region.pixelDensity(pd);
    region.canvas
      .getContext('2d')
      .drawImage(canvas, x, y, w * pd, h * pd, 0, 0, w*pd, h*pd);

    return region;
  }

  _getPixel(x, y) {
    let imageData, index;