web development helpdesk

The ImageIO class can be used to write an image as a PNG encoded stream.If you write that stream to a ByteArrayOutputStream then you will end up with a byte array that contains the PNG encoded image.

ByteArrayOutputStream out = new ByteArrayOutputStream();
ImageIO.write(image, "PNG", out);
byte[] imageBytes = out.toByteArray(); 

written by objects \\ tags: image, png, stream