Merge images in Java-CodePudding

I am trying to merge two images in Java. The two photos must be positioned horizontally (the first to the left of the second). I think I have problems in the write method of the ImageIO class.

import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.*;
import javax.imageio.*;

public class Merge {
    public static void main(String[] args) throws IOException {
        String p = "../../Desktop/temp/";
        BufferedImage left = ImageIO.read(new File(p "006.jpg"));
        BufferedImage right = ImageIO.read(new File(p "007.jpg"));
        BufferedImage imgClone = new BufferedImage(left.getWidth() right.getWidth(), left.getHeight(), BufferedImage.TYPE_INT_ARGB);
        Graphics2D cloneG = imgClone.createGraphics();
        cloneG.drawImage(right, 0, 0, null);
        cloneG.drawImage(left, left.getWidth(), 0, null);
        System.out.println(ImageIO.write(imgClone, "jpg", new File(p "001.jpg"))); //always false
        cloneG.dispose();
    }
}

ImageIO.write(imgClone, "jpg", new File(p "001.jpg")) always returns false, I think there is something wrong here but I can't figure out what. If I go into debugging I can see the merged photo, but then it won't be saved in the folder.

CodePudding user response：

I think it's because JPEG doesn't support transparency, and you used ARGB as the image buffer type. Removing the "A" worked for me.

 class Merge {
    public static void main(String[] args) throws IOException {
        BufferedImage imgClone = new BufferedImage( 50, 50, BufferedImage.TYPE_INT_RGB);
        // returns "true"
        System.out.println(ImageIO.write(imgClone, "jpg", File.createTempFile( "Test-", "jpg"))); 
    }
}