public Bitmap setWatterMark(Bitmap bitmap){
        Bitmap bitmap1 = bitmap.copy(Bitmap.Config.ARGB_8888,true);
        for (int i = 0;i<bitmap.getWidth();i+=4){
            bitmap1.setPixel(i,2, Color.rgb(59,45,11));
        }
        return bitmap1;
}
public boolean checkForWattermark(Bitmap bitmap){

        for (int i= 0;i<bitmap.getWidth();i+=4){
            if (bitmap.getPixel(i,2)!=Color.rgb(59,45,11)){
                return false;
            }
        }
        return true;
}