Re: getScaledInstance for BufferedImage.
From: Roedy Green (look-on_at_mindprod.com.invalid)
Date: 05/13/04
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Date: Thu, 13 May 2004 07:22:39 GMT
On Thu, 13 May 2004 06:56:23 GMT, Roedy Green
<look-on@mindprod.com.invalid> wrote or quoted :
>getScaledInstance produces an Image out of my BufferedImage.
>It does not produced a BufferedImage I can simply cast.
>
>
>What is the best to way to either convert it back to a BufferedImage
>or to get myself a scaled BufferedImage?
After some horsing around here is what appears to work, but my choice
of type TYPE_INT_BGR was arbitrary. It seems goofy to change from
JPEG to bit map to convert back to JPEG map gain.
// magnify which has side effect of turning back to plain Image.
Image magnifiedImage
= image.getScaledInstance( magnifiedImageWidth,
magnifiedImageHeight,
BufferedImage.SCALE_SMOOTH);
// convert back to BufferedImage
BufferedImage bufferedImage = new BufferedImage (
magnifiedImageWidth,
magnifiedImageHeight,
BufferedImage.TYPE_INT_BGR);
bufferedImage.createGraphics().drawImage(
magnifiedImage, 0, 0, this /* observer */ );
// write out the BufferedImage as a JPEG
ImageIO.write( bufferedImage,
"JPEG" /* format desired */ ,
file );
.
-- Canadian Mind Products, Roedy Green. Coaching, problem solving, economical contract programming. See http://mindprod.com/jgloss/jgloss.html for The Java Glossary.
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