for(int y=0;y<height;y++) {
            if(rounds==0) {
                    break;
            }
            for(int x = 1; x<width; x++) {
                int prevBrightness = (int) brightness(img.getRGB(x-1, y));
                int currentBrightness = (int) brightness(img.getRGB(x, y));


                if(prevBrightness>currentBrightness) {
                    int temp = img.getRGB(x,y);
                    result.setRGB(x,y, img.getRGB(x-1, y));
                    result.setRGB(x-1, y, temp);
                }

            }
            rounds--;
        }