Photoshop: median filter causing image corruption in CS5 Mac

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  • Updated 6 years ago
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Using Photoshop CS5 on the Mac, ver. 12.0.4 32bit. I've been mystified for a while about this problem, but it is starting to happen more reliably - either during use of the median filter or right after, the PSD file goes absolutely crazy and PS adds pixelated masks to layers all up and down the stack. It will add random rectangles of black & white to existing layer masks and will alter the opacity of full-canvas layers in the same random rectangle Mondrian-style shapes.

Sometimes, but not always, I can recover the file by immediately shutting down PS (without saving of course) and re-opening the file. Of course I lose all work since last save and in several instances have lost entire PSD files because the craziness was immediately embedded in it and has now become worthless.

It has turned out to be an incredibly destructive bug. I use lots and lots of filters pretty regularly and have not run into any problems with other filters, seems to be limited to the median filter (so far). Obviously I've had to remove the median filter from my workflow, and am nervous about it happening again.
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Scott Baumberger

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Posted 6 years ago

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christoph pfaffenbichler, Champion

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Sounds somewhat like a problem some people have with Gaussian Blur.
http://forums.adobe.com/message/33071...

I guess most Photoshop programmers will have their plates full at the moment, but if you can cause the error halfway reliably someone might be interested in it.

Just to make sure: When you proceed after the issue has arisen those shapes are definitively there and not just a display issue?
And have you performed the usual trouble-shooting routines (trashing prefs by keeping command-alt-shift/ctrl-alt-shift pressed while starting Photoshop, 3rd party plug-ins deactivation, system maintenance, font validation, etc.)?
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Scott Baumberger

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Hey thanks for the reply, that was fast! Reluctant to trash pref's at this point, but will try the other things you mention. Funny how similar the problem is, that is exactly what I've been running into - it's not a video thing, the file is actually corrupted. My time machine has saved me on several occasions! If it was a video thing, then the restored file should be messed up too. Additionally, in the crisis I tried opening up the PSD file on a PC and it was shredded there as well.

FWIW, it seems like most people in the other thread are running the extended version of PS, I'm just using basic (?) version 12.0.4 which seems to be the most recent. Smart filters are mentioned a lot and I haven't been using these either. My PSD files can have hundreds of layers and I use Gaussian Blur all the time without any problems, so far it appears to be limited to the Median filter.

Surprised to see this thread goes back to Nov 2010 and is still not answered. If I had to choose between the new features in CS5 and not feeling nervous about using filters, I may have to go back to CS4. Upgrading was expensive, but losing work is much more expensive.

If I was able to force a corruption on demand, how would I go about relaying this to support?

Thanks again for your help,
Scott
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christoph pfaffenbichler, Champion

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Jeanne Rubbo has offered/asked to be allowed to set up remote sessions in that thread if people could trigger the issue to monitor their computer activity; though if I remember correctly in a relatively young post she mentioned that she was not able to do so at the time (I suspect due to the approaching release of CS6).
I would give it some time, though, because there’s a good chance one of the Adobe employees who frequent this Forum might contribute here and if they should conclude this is a legitimate bug I guess they will pass it on or look into it anyway.

As far as I gathered the problem with the Gaussian Blur-image corruption-issue was that it happened to only a few people (compared to the total user-numbers) and could not be recreated or observed by Adobe engineers – so it’s really hard (or impossible) for them to pin down the causes ...
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Chris Cox

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Also, the GBlur issues seemed to be restricted to Smart Filters.
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angela Pappine

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I applied a Gaussian Blur to one layer and the same thing happened to my file. This was after having successfully applied blurs before. Every layer except for the one with the blur effect was corrupt with black and white cut outs throughout the image. I immediately closed the file and then reopened the file, and the file was still ruined. I thought hours and hours of work were lost. However, once I QUIT out of Photoshop and then reopened, the file was okay, fortunately!! I hope Adobe figures this one out.
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Chris Cox

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If you closed the file without saving, and it was still corrupted - then the file was corrupted before being loaded, or you were just seeing a display driver problem.

If you didn't save the file - it couldn't be corrupted.