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JPG striping colors problem in browser display
Posted: Mon Feb 05, 2007 8:45 pm
by ghost zero
For the attached sample JPG image, there is a striping colors problem in browser display. Happens in fullscreen and in the preview area. But this problem doesn't happen to the image if tabbed--the image is smoother. Can this be fixed?
sample JPG image:
problem:

Re: JPG striping colors problem in browser display
Posted: Tue Feb 06, 2007 8:43 am
by xnview
ghost zero wrote:For the attached sample JPG image, there is a striping colors problem in browser display. Happens in fullscreen and in the preview area. But this problem doesn't happen to the image if tabbed--the image is smoother. Can this be fixed?
Strange i can't reproduce it, and i use the same resize method.
You have a low resolution on your screen 800x600??
Posted: Tue Feb 06, 2007 2:36 pm
by ghost zero
i use 1600x1200 32 bit. did you try using the test image above?
Posted: Tue Feb 06, 2007 6:57 pm
by Olivier_G
I confirm having a small difference between Browser's fullscreen and Viewer, even when viewed at 100% (ie: no resize)... but it's slightly different from what you get (I have 1600x1200 32 bits too).
Here is the pattern of the difference once expanded to the maximum:
This difference is maybe due to slight differences in colour adjustements...

...although this image has no ICC embedded profile.
Posted: Tue Feb 06, 2007 7:25 pm
by ghost zero
btw: the screenshot was taken with a test image 2x larger
Posted: Wed Feb 07, 2007 9:29 am
by xnview
Olivier_G wrote:I confirm having a small difference between Browser's fullscreen and Viewer, even when viewed at 100% (ie: no resize)... but it's slightly different from what you get (I have 1600x1200 32 bits too).
Here is the pattern of the difference once expanded to the maximum:
This difference is maybe due to slight differences in colour adjustements...

...although this image has no ICC embedded profile.
Ok, i understand. The difference is the loading. I use for preview jpeg fast arithmetic, so i think that it's not a good idea...
Posted: Wed Feb 07, 2007 12:11 pm
by Drahken
You can't really get the same results with the half sized image. However, if you use xnview to double size the image and save it, then run the tests, you should get the same results. It clearly has something to do with resizing in the preview pane. If you change the size of the preview pane and watch the image, you can see the stripes change. They become more obvious at certain points and less obvious at others.
It should also be noted that the striping is in the original image to a certain degree, but is normally not apparent unless you zoom in and look very closely.
My guess is that the preview pane isn't using high quality zoom (I remember some post along the same lines here ages ago, don't recall whatever became of the issue). I tried turning off the high quality enlarge/reduce settings under view in the options, but it had no effect on either the preview pane, nor the viewer mode.
Posted: Wed Feb 07, 2007 4:12 pm
by ghost zero
remember this problem also happens in the fullscreen mode from browser
Posted: Thu May 31, 2007 9:02 am
by ghost zero
fixed yet?
Posted: Thu May 31, 2007 9:08 am
by xnview
ghost zero wrote:fixed yet?
Yes