Photoshop CS6 issue, wrong color rendition

[Hans Rolink]

I am having something very strange here...
When I edit a file of a plane with lots of blue in it like this Thai PC.9 (yes, I know showing off and all that ) I am seeing something very odd. And it only happens in CS6!
What did I do?
- I pre-edited the file in Camera Raw 7.2
- I opened it in CS6 and
- The deepest blue parts of the plane are all black. And it only happens with deep blue, not with any other color!

Now comes the strangest part. When I save that file, of which I naturally thought it was screwed, and opened it up with an other image viewer like FastStone, nothing is wrong!
Opening the file in CS6 again brought back the black splotches. It does not happen in CS3 !. Uploading the image on the web and viewing it in any browser; no black splotches.
So I am lost...

Any ideas?

Screenshot of CS6 including the "problem".



The file, edited with CS6 which did show the splotches in CS6 but not visible in any other viewer or browser.


Thanks for your thoughts/suggestions....

Hans.

[Iwan Bogels]

Weird....

[DJdeRidder]

My guess is that Photoshop is telling you what parts of the image are over-saturated (although the image looks fine to me). If you decrease or increase Saturation, does the situation change? I'm not familiar with CS6, but if it does change there should be a way to turn these 'saturation warnings' off..

[Hans Rolink]

My guess is that Photoshop is telling you what parts of the image are over-saturated (although the image looks fine to me). If you decrease or increase Saturation, does the situation change? I'm not familiar with CS6, but if it does change there should be a way to turn these 'saturation warnings' off..

Decreasing saturation indeed solves the problem. It only takes -5 points to do the trick. Increasing saturation turns everything blue into black, but again only the blues, not the reds or the greens...
What's really weird is that on my netbook with the exact same software and example image no black splotches show... Something with the graphics board? But why don´t I see anything with other viewers-browsers?

Anyway, thanks for the tip, Dirk Jan! Looks like I was too fixated on a hardware issue to even consider desaturating.

Hans.

[DJdeRidder]

No, I'm sure it's some kind of setting you applied inside Photoshop itself. The only problem is how to find the exact menu where you can turn this function off..

[jp 74]

My wife ( she is a desktop publisher) think's it's a gamut warning this is a setting that warns you when there is to mutch ink in one spot.
Does this appear when you zoom in it can also be a fault in photoshop.
Maybe you can remove you settings in camera raw and try to edit again.

[Hans Rolink]

My wife ( she is a desktop publisher) think's it's a gamut warning this is a setting that warns you when there is to mutch ink in one spot.
Does this appear when you zoom in it can also be a fault in photoshop.
Maybe you can remove you settings in camera raw and try to edit again.

Hi,

Your wive's thought about a gamut warning is interesting. Ill look into it. Thanks!

When I zoom in on a black spot it tends to dissolve in many smaller fragments, up to single pixel level in places.
Indeed, when I deliberately overexpose in Camera Raw, it goes away too, bit that's no solution as it causes blown highlights which is even worse.

Hans.