Create 8-Bit Style Graphics with Authentic Gameboy Colors
if(preview!=null){
GameBoyDithering gameBoyDithering = new GameBoyDithering();
BitmapHelper bitmapHelper = new BitmapHelper();
FinalBitmap = bitmapHelper.getResized(preview, 310, false);
FinalBitmap = gameBoyDithering.ordered2By2Bayer(FinalBitmap);
FinalBitmap = bitmapHelper.ContrastBrightness(FinalBitmap, 1, -24);
FinalBitmap = bitmapHelper.changeColor(FinalBitmap, getResources().getColor(R.color.gameboycolor));
img.setImageBitmap(FinalBitmap);
}