Javsacript: Convert canvas to image, image to canvas

convert-canvas-image.js

function convertImageToCanvas(image) {
  var canvas = document.createElement("canvas");
  canvas.width = image.width;
  canvas.height = image.height;
  canvas.getContext("2d").drawImage(image, 0, 0);
  return canvas;
}

function convertCanvasToImage(canvas) {
  var image = new Image();
  image.src = canvas.toDataURL("image/png");
  return image;
}