Hi Sumit,
this could be a manifestation of either
4904494: Gray BufferedImage is too bright
or
4474840: JDK 1.3fcs and 1.4 not correctly displayed gray-scale image in JAI
unit test
Unfortunately neither of those is high on our priority list right
now.
Thanks,
Dmitri
Java2D Team
On Tue, Jun 14, 2005 at 08:50:15AM -0700, sumit shah wrote:
> Hi Guys,
>
> Sorry for the omission. Here is my platform:
>
> Windows XP Service Pack 2
> JDK 1.5.0_03
> JAI 1.1.2_01
>
> However I have seen this problem with JDK 1.4.2 as well.
>
> Doing the same operation in JAI with the same images has always
> worked flawlessly with Bicubic, Bicubic2, Bilinear, and Nearest
> neighbor interpolation algorithms.
>
> Thanks,
> Sumit
>
> On Jun 14, 2005, at 8:26 AM, Dmitri Trembovetski wrote:
>
> >
> > Hi Sumit,
> >
> > it'd help if you point out the version of jdk you're using and the
> > platform you run it on..
> >
> > Thanks,
> > Dmitri
> > Java2D Team
> >
> >On Tue, Jun 14, 2005 at 08:03:43AM -0700, sumit shah wrote:
> >
> >>Dear Java2D Users:
> >>
> >>I am trying an affine transformation operation that works
> >>fantastically when using JAI.create methods. However I am trying to
> >>do the same thing using the Java2D methods. Unfortunately it works
> >>only for AffineTransformOp.TYPE_NEARESTNEIGHBOR, but does not work
> >>well when
> >>using AffineTransformOp.TYPE_BICUBIC. The image becomes
> >>significantly brighter when using bicubic interpolation (as well as
> >>for bilinear) I've attached two test images where it works and
> >>doesn't work as well as some test code.
> >>
> >>Does anyone out there have any ideas?
> >>
> >>Thanks so much.
> >>Sumit
> >>
> >>
> >> try {
> >> BufferedImage b = ImageIO.read(new File("works.png"));
> >> AffineTransform at = new AffineTransform();
> >> at.setToScale(5.3, 5.3);
> >> AffineTransformOp aop = new AffineTransformOp(at,
> >>AffineTransformOp.TYPE_BICUBIC);
> >> b = aop.filter(b, null);
> >> ImageIO.write(b, "png", new File("works1.png"));
> >>
> >>
> >> b = ImageIO.read(new File("doesntwork.png"));
> >> b = aop.filter(b, null);
> >> ImageIO.write(b, "png", new File("doesntwork1.png"));
> >>
> >> } catch (Exception e) {
> >> e.printStackTrace();
> >> }
> >>
> >>
> >>
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> >>
> >
> >
> >
>
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