Draw graphics on Image and Save it

Question

hi!,
Can anyone help me how to draw graphics(Line, rectangle.ect) on an Image and save it. I need to do the following steps.
1. Get the Image from the local file system
2. Based on the parameters i receive for graphics(Ex: rectangle).
-I have to draw a rectangle on the Image.
3. Save the Image again to the file system
I would appreciate if any one has any ideas or sample code I can start with.
Thanks!!!

Answer 1

Here's an example using the javax.imageio package.
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
public class DrawOnImage {
    public static void main(String[] args) {
        try {
            BufferedImage buffer = ImageIO.read(new File(args[0]));
            Graphics2D g2d = buffer.createGraphics();
            Rectangle rect = new Rectangle(10, 10, 100, 100);
            g2d.setPaint(Color.RED);
            g2d.draw(rect);
            ImageIO.write(buffer, "JPG", new File(args[1]));
        } catch (IOException e) {
            e.printStackTrace();
}