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dekkerver
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Bad image display quality in CS5

Sep 16, 2012 10:21 PM

I had CS5 installed over a year ago and running without any display problems until recently. About a week ago I noticed severe banding in the high light areas of my images when I opened them in PS. At first I thought there was something wrong with my camera, or just plain bad images, until I realised that the images display without any banding in Windows Photo Viewer or any other viewer! I'm running Windows XP SP3. I have not made any hardware, software or other changes recently (except installing a Nik S/W plugin – which I subsequently uninstalled but that did not solve the problem). Also no changes in colour profiles etc. I also updated CS5 to the latest version; disable/enabled Open GL acceleration in the preferences without any effect on the problem. I am at a loss.

599 Views   11 Replies   Latest reply: dekkerver, Sep 18, 2012 9:28 PM
 
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  • John Waller
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    1. John Waller,
    Sep 16, 2012 10:24 PM   in reply to dekkerver
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    Can you post a screenshot?

     
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  • Sudarshan Thiagarajan
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    Oct 15, 2010
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    2. Sudarshan Thiagarajan,
    Sep 16, 2012 10:36 PM   in reply to dekkerver
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    Can you verify that you're running the latest video card driver? Also, can you check if there have been some updates from Adobe for Photoshop that you've installed?

     
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  • dekkerver
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    3. dekkerver,
    Sep 16, 2012 10:38 PM   in reply to John Waller
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    Unfortunately I'm at work - the problem is on my home PC. But the problem looks similiar to this:

    1-.jpg

    instead of a smooth gradient like this:

    2-.jpg

     
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  • dekkerver
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    4. dekkerver,
    Sep 16, 2012 10:41 PM   in reply to Sudarshan Thiagarajan
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    I've updated the display driver about 9 months ago and had no problems at all. And absolutely no Adobe s/w updates (just the CS5 update trying to solve the problem)

     
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  • Sudarshan Thiagarajan
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    Oct 15, 2010
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    5. Sudarshan Thiagarajan,
    Sep 16, 2012 10:43 PM   in reply to dekkerver
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    Can you check the bitrate of the image you're working at?

     

    It may also be a video driver problem like I suggested earlier.

     
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  • smokingcig
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    6. smokingcig,
    Sep 16, 2012 11:07 PM   in reply to Sudarshan Thiagarajan
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    Could it be windows bit-color display settings? Just a thought...

     
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  • Chris Cox
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    7. Chris Cox,
    Sep 17, 2012 12:01 AM   in reply to smokingcig
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    Could be a driver issue (GPU quantization due to bad shader implementation), or it could be a bad display profile (with a bad table or 3DLUT).

     

    Try setting the display profile to sRGB in the OS controls, see if that helps.

    Next, try disabling GPU drawing in Photoshop, then restart Photoshop.

     
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  • Sudarshan Thiagarajan
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    Oct 15, 2010
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    8. Sudarshan Thiagarajan,
    Sep 17, 2012 12:45 AM   in reply to smokingcig
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    He says that it looks just fine in other apps. Hence, it cannot be a OS color setting.

     
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  • Sudarshan Thiagarajan
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    Oct 15, 2010
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    9. Sudarshan Thiagarajan,
    Sep 17, 2012 12:45 AM   in reply to Chris Cox
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    Could be a driver issue (GPU quantization due to bad shader implementation), or it could be a bad display profile (with a bad table or 3DLUT).

     

     

    Chris, I second you on that.

     
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  • Chris Cox
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    10. Chris Cox,
    Sep 17, 2012 1:08 AM   in reply to Sudarshan Thiagarajan
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    Most other applications don't use the display profile (an OS color setting).

     
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  • dekkerver
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    11. dekkerver,
    Sep 18, 2012 9:28 PM   in reply to smokingcig
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    Thanks smokingcig:     That was the problem and I am relieved and embarrassed at the same time: the monitor colour settings were wrong (16 bit instead of 32 bit colour). It was just so much more noticeable in PS than in other apps… Sorry for wasting your time guys! But thanks a lot anyway.

     
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