I just want to place two different images on one canvas and make it a .jpg file in Java. I just want to make a resulting file, not a GUI.

I want to make a result file like below with both images above:

CodePudding user response：

You can use BufferedImage to combine the two images. The following code shows a simple implementation.

    public static void combineImages(String imagePath1, String imagePath2, String outputPath) throws IOException {
        int intervalWidth = 20; // The interval between two images
        BufferedImage image1 = ImageIO.read(new File(imagePath1));
        BufferedImage image2 = ImageIO.read(new File(imagePath2));
        int combinedWidth = image1.getWidth()   image2.getWidth()   intervalWidth;
        int combinedHeight = Math.max(image1.getHeight(), image2.getHeight());
        BufferedImage combined = new BufferedImage(combinedWidth, combinedHeight, BufferedImage.TYPE_INT_RGB);
        Graphics2D g = combined.createGraphics();
        g.setColor(Color.WHITE);
        // Fill the background with white
        g.fillRect(0, 0, combinedWidth, combinedHeight);
        // Draw the two images on the combined image
        g.drawImage(image1, 0, 0, null);
        g.drawImage(image2, image1.getWidth()   intervalWidth, 0, null);
        ImageIO.write(combined, "jpg", new File(outputPath));
    }