Chris, Thanks a lot! Much appreciated! I will give it a try.
Ernst Op 26-jul-2007, om 19:13 heeft Chris Campbell het volgende geschreven:
Hi Ernst, Probably the most straightforward way would be to render your original image into an 8-bit indexed image and then send that to ImageIO instead: BufferedImage img = new BufferedImage(w, h, BufferedImage.TYPE_BYTE_INDEXED); Graphics g = img.createGraphics(); g.drawImage(orig, 0, 0, null); g.dispose(); ImageIO.write(img, "png", file); The drawImage() call will take care of downsampling your original 24-bit image into an 8-bit IndexColorModel automatically. If you want to have more control over the color map (or you want to create a 16-color PNG), you can provide your own IndexColorModel when constructing a BufferedImage, but the above code is usually sufficient in most cases. Chris On Jul 26, 2007, at 3:29 AM, Ernst de Haan wrote:I'm using Java2D (with ImageIO) to produce a PNG file. This works OK. But how do I use Java2D to convert the image to an indexed color format (16 or 256 colors) before writing the PNG file? Are there are different ways of reducing the number of colors? Cheers, Ernst ===================================================================== ====== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA2D-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
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