Create a BufferedImage from file and make it TYPE_INT_ARGB

java image image-manipulation bufferedimage argb
user1319734 picture user1319734 · May 1, 2012 · Viewed 129.7k times · Source

I have a PNG file with transparency that is loaded and stored in a BufferedImage. I need this BufferedImage to be of TYPE_INT_ARGB. However, when I use getType() the returned value is 0 (TYPE_CUSTOM) instead of 2 (TYPE_INT_ARGB).

This is how I load the .png:

public File img = new File("imagen.png");

public BufferedImage buffImg = 
    new BufferedImage(240, 240, BufferedImage.TYPE_INT_ARGB);

try { 
    buffImg = ImageIO.read(img ); 
} 
catch (IOException e) { }

System.out.Println(buffImg.getType()); //Prints 0 instead of 2

How can I load the .png, save in the BufferedImage and make it TYPE_INT_ARGB?

Answer

Jeffrey picture Jeffrey · May 1, 2012 
BufferedImage in = ImageIO.read(img);

BufferedImage newImage = new BufferedImage(
    in.getWidth(), in.getHeight(), BufferedImage.TYPE_INT_ARGB);

Graphics2D g = newImage.createGraphics();
g.drawImage(in, 0, 0, null);
g.dispose();

Related questions

How to add an image to a JPanel?

I have a JPanel to which I'd like to add JPEG and PNG images that I generate on the fly. All the examples I've seen so far in the Swing Tutorials, specially in the Swing examples use ImageIcons. I'm generating …

Read More
Capturing image from webcam in java?

How can I continuously capture images from a webcam? I want to experiment with object recognition (by maybe using java media framework). I was thinking of creating two threads one thread: Node 1: capture live image Node 2: save image as "1.jpg" …

Read More
Simplest way to set image as JPanel background

How would I add the backgroung image to my JPanel without creating a new class or method, but simply by inserting it along with the rest of the JPanel's attributes? I am trying to set a JPanel's background using an …

Read More