Converting transparent gif / png to jpeg using java

Question

I\'d like to convert gif images to jpeg using Java. It works great for most images, but I have a simple transparent gif image:

Input gif image http://img292.imagesha

Answer 1

BufferedImage originalImage = ImageIO.read(getContent());
BufferedImage newImage = new BufferedImage(originalImage.getWidth(), originalImage.getHeight(), BufferedImage.TYPE_3BYTE_BGR);

    for (int x = 0; x < originalImage.getWidth(); x++) {
        for (int y = 0; y < originalImage.getHeight(); y++) {
            newImage.setRGB(x, y, originalImage.getRGB(x, y));
        }
    }
 ImageIO.write(newImage, "jpg", f);

7/9/2020 Edit: added imageIO.write