// To create a buffered image, see Creating a Buffered Image // en the image by 30% float scaleFactor = 1.3f; RescaleOp op = new RescaleOp(scaleFactor, 0, null); bufferedImage = op.filter(bufferedImage, null); // Darken the image by 10% scaleFactor = .9f; op = new RescaleOp(scaleFactor, 0, null); bufferedImage = op.filter(bufferedImage, null);