Java tutorial
import java.awt.image.BufferedImage; public class Main { public static void main(String[] argv) throws Exception { BufferedImage bufferedImage = new BufferedImage(200, 200, BufferedImage.TYPE_INT_RGB); int rgb = bufferedImage.getRGB(1, 1); int w = bufferedImage.getWidth(null); int h = bufferedImage.getHeight(null); int[] rgbs = new int[w * h]; bufferedImage.getRGB(0, 0, w, h, rgbs, 0, w); rgb = 0xFF00FF00; // green bufferedImage.setRGB(1, 1, rgb); } }