canvas에 이미지 넣을 때 사이즈 맞추기
developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/drawImage CanvasRenderingContext2D.drawImage() - Web APIs | MDN The CanvasRenderingContext2D.drawImage() method of the Canvas 2D API provides different ways to draw an image onto the canvas.void ctx.drawImage(image, dx, dy); void ctx.drawImage(image, dx, dy, dWidth, dHeight); void ctx.drawImage(image, sx, sy, sWidth, s developer.m..