Resizing image in GUI

Hey everyone,
I want to display an iexternal image (ie an image file image.jpg) in a frame, but when the frame is resized by the user ( it should only be resized in set proprtions) it will rezise the image displayed.
Im new to GUI programming and am not sure how to do this. Can anyone help please ?
Many Thanks,
d-_-b.

Without looking at the API, I remember there's something about Image.getScaledInstance(). You need to run that when the frame's size-change listener receives an event.

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Using hint like Image.SCALE_AREA_AVERAGING gives somehwat satisfactory resizing.
2. static BufferedImage resize(GraphicsConfiguration gc, BufferedImage source, int w, int h, Object hintValue) {
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g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, hintValue);
double sx = (double) w / source.getWidth(), sy = (double) h / source.getHeight();
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g2.dispose();
return result;
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Now which of the two method method should I use-using image.getScaledInstance() or using AffineTranform ? opr is there any other way which is faster but provides good result?
i am creating an image editor, so the GUI dialog will have oprtion to choose the algorithm. I want the method which provides better result yet faster.
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http://forum.java.sun.com/thread.jsp?forum=20&thread=522483

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Previously I'd say just use getScaledInstance() on the image. Then I read this article: [The Perils of Image.getScaledInstance()|http://today.java.net/pub/a/today/2007/04/03/perils-of-image-getscaledinstance.html]

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Edited by: crawlie on Jul 17, 2010 6:21 PM

Hey Crawlie,
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 return new byte[] {
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 (byte)(value >>> 16),
 (byte)(value >>> 8),
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}Good Luck!
Daniel

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Resizing image in GUI

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