Converting a BufferedImage to another type

Question

The most convenient method to read an image from a source (Files, InputStreams, URLs) is:

BufferedImage myImage = ImageIO.read( source );

But then, how to convert myImage to a BufferedImage.TYPE_USHORT_565_RGB format?

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– Alba Mendez, Commented Nov 19, 2011 at 13:10

Jon · Accepted Answer · 2011-11-19 13:01:54Z

39

You can create a new BufferedImage of the required type and then draw the original image on it, something like:

    BufferedImage bufImg = ImageIO.read( imageURL );
    BufferedImage convertedImg = new BufferedImage(bufImg.getWidth(), bufImg.getHeight(), BufferedImage.TYPE_USHORT_565_RGB);
    convertedImg.getGraphics().drawImage(bufImg, 0, 0, null);

answered Nov 19, 2011 at 13:01

Jon

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2 Comments

Crembo Over a year ago

This is an old question, but once should not forget to use dispose() after using drawImage().

b005t3r Over a year ago

I know this is a common method, but it is also super slow. Is there anything faster?

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