Need help with color cast in PS

J
Posted By
JimS
Feb 19, 2004
Views
260
Replies
3
Status
Closed
I’m new to PS7 and not very knowledgeable about color profiles, etc.

I’m having a problem with digital photos displayed in PS. They all have a reddish cast to them and yet, when viewed with ACDSee, Breezebrowser, or Epson Film Factory, they look fine. They also print out fine, without the reddish cast.

One of the PS books I purchased said to change the sRGB to Adobe RGB 1998, but even after doing so the photos still have a reddish cast to them.

Can anyone explain (in beginners terms) what is going on, and how to go about fixing it?

Any help would be greatly appreciated.
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B
bhilton665
Feb 19, 2004
From: JimS

I’m having a problem with digital photos displayed in PS. They all have a reddish cast to them and yet, when viewed with ACDSee, Breezebrowser, or Epson Film Factory, they look fine. They also print out fine, without the reddish cast.

This likely means your monitor ICM file is bad, if you’ve even generated one. Photoshop relies on this file to color-manage what images look like on the screen, while many other programs which are not color managed do not use it.

One of the PS books I purchased said to change the sRGB to Adobe RGB 1998, but even after doing so the photos still have a reddish cast to them.

That wouldn’t help this problem.

Can anyone explain (in beginners terms) what is going on, and how to go about fixing it?

Try this … with one of the images open do a soft-proof on it, which bypasses the monitor ICM profile … you do this with View > Proof setup > Monitor RGB …. this image SHOULD now look like it does in the non-color managed applications. Do cntrl-y (if using Windows) to toggle the profile on/off to see the changes.

If this is the problem (and I’ll bet it is) then you can either do all your edits with this soft proof on (bad way to work, but better than having poor colors I guess …) or you can try to generate a better, accurate monitor profile, starting with Adobe Gamma utility.

If you’re using Windows you can see what profile your monitor is currently using by right-clicking on the empty desktop, then Properties > Settings > Advanced > Color Management and the profile will be listed as "default monitor profile". If you didn’t generate this profile then that’s probably the source of your problems.

Hope this helps.

Bill
J
JimS
Feb 19, 2004
On 19 Feb 2004 15:59:47 GMT, (Bill Hilton)
wrote:

Try this … with one of the images open do a soft-proof on it, which bypasses the monitor ICM profile … you do this with View > Proof setup > Monitor RGB … this image SHOULD now look like it does in the non-color managed applications. Do cntrl-y (if using Windows) to toggle the profile on/off to see the changes.

Thanks for the help and yes there was a big difference.

If this is the problem (and I’ll bet it is) then you can either do all your edits with this soft proof on (bad way to work, but better than having poor colors I guess …) or you can try to generate a better, accurate monitor profile, starting with Adobe Gamma utility.

I guess I’ll try the Adobe Gamma Utility and see if I can get a better profile. Time to look in the books again.
If you’re using Windows you can see what profile your monitor is currently using by right-clicking on the empty desktop, then Properties > Settings > Advanced > Color Management and the profile will be listed as "default monitor profile". If you didn’t generate this profile then that’s probably the source of your problems.

Yep, "default monitor profile" is what it shows.

Hope this helps.

Bill

Thanks for the help, this color profile/color management/gamma adjusting all seems a little overwhelming at times.

Of course, it doesn’t help that my eyes aren’t as sharp as they were 30 years ago. LOL
B
bhilton665
Feb 19, 2004
If you’re using Windows you can see what profile your monitor is currently using by right-clicking on the empty desktop …

From: JimS

Yep, "default monitor profile" is what it shows.

It should list one beside this, mine says "default monitor profile: PhotoCAL_0402014" for example, meaning (to me) I calibrated it with PhotoCal on Feb 14 … if it doesn’t list a specific file then probably the monitor hasn’t been profiled at all and Photoshop is just defaulting to using some generic profile, which explains the problem.

Thanks for the help, this color profile/color management/gamma adjusting all seems a little overwhelming at times.

There are some good sources of info available on the net, but unfortunately a lot of bad information too from people who don’t believe CM works (or think it’s been oversold, or don’t seem to undertand it). Try these for background ….

http://www.creativepro.com/story/feature/13605.html
http://www.computer-darkroom.com/ps7-colour/ps7_1.htm

I agree it can be "overwhelming" but for me once the bulb clicked on it was worth the effort getting there 🙂

Bill

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