HTML5에서 캔버스 데이터를 파일로 저장하는 방법은 무엇입니까?

var canvas = document.getElementById("Canvas1"); var ctx1 = canvas.getContext("2d"); ctx1.moveTo(0,0); ctx1.lineTo(300,200); ctx1.stroke(); // This method actually draw graphics as per context object

var imgurl= canvas.toDataURL( ) ; / / This method saves graphics in png document.getElementById(‘cimg’).src = imgurl; // This will set img src to dataurl(png) so that it can be saved as image.