[안드로이드]이미지 합성하는 방법

 private Bitmap overlayMark(Bitmap bmp1, Bitmap bmp2,int distanceLeft,int distanceTop) {
  Bitmap bmOverlay = Bitmap.createBitmap(bmp1.getWidth()+distanceLeft,
    bmp1.getHeight()+distanceLeft, bmp1.getConfig());
  Canvas canvas = new Canvas(bmOverlay);
  canvas.drawBitmap(bmp1, distanceLeft, distanceTop, null);
  canvas.drawBitmap(bmp2, 0, 0, null);
  return bmOverlay;