int nRgb = RgbVal.toRgb(
(byte)((this.random.nextInt()&0xff)+Byte.MIN_VALUE),
(byte)((this.random.nextInt()&0xff)+Byte.MIN_VALUE),
(byte)((this.random.nextInt()&0xff)+Byte.MIN_VALUE));
Rect rect = r.getRect();
rgbImage = rgbImage.fill(rect, nRgb);
}
return rgbImage;
}