There appears to be a bug in your method. Was this a cut-and-paste error?
[EMAIL PROTECTED] wrote:
Hi.
I am writing an Applet for viewing large (~2600x3500) tiff files. Here is my
scaling method
public static BufferedImage getScaledInstance( Image img, int targetWidth,
int targetHeight, Object hint, boolean higherQuality ) {
[...lines deleted for brevity...]
ret = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = ret.createGraphics();
g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, hint);
g2.drawImage(img, 0, 0, w, h, null);
g2.dispose();
This line should be added here:
img = ret;
} while (w != targetWidth || h != targetHeight);
[...more lines deleted for brevity...]
}
Does that help the timings any? It should definitely improve the
quality of the results for this case.
Also, which version of the JDK are you using and what kind of image is
returned from the ImageIO.read method? Doing a System.out.println() on
the returned BufferedImage will print out a lot of detail about its type
and internal storage structure. Also, if you run with the command line
argument "-Dsun.java2d.trace=log" you can see which kinds of operations
are used for the scaling operations.
...jim
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