Please help me fix my colour issues

MP
Posted By
Mike_Privacy
Sep 13, 2006
Views
364
Replies
8
Status
Closed
OK, I’m at my wits end. I have a good grasp of colour management but this one I just can’t figure out. Basically, the colours in photoshop (and photoshop only, no other apps) look incorrect.

For example. If I open photoshop, do a screen grab, and paste it into a new rgb document with the sRGB colourspace, the colours have way too much red/magenta. The only way I can get the colour to look correct again is if I turn on Proof Colours with the monitor profile (created with my eye 1 display) selected. By default, the colours are all wrong.

However, if I then save for web, the colours look fine int eh save for web preview screen (save for web exports to sRGB by default and so this is the correct behaviour).

Note that assigning a new colourspace to the document does not fix the issue.

None of my other apps have trouble showing the correct colour. Not iView, not ACDSee, not BreezeBrowser, not Capture One. Just photoshop.

I can’t for the life of me fisure this out. Does anyone have any magic silver bullet for me to try? I’ve read the relevant bits in "Real World COlour Management" and still I get this issue.

….Mike

How to Master Sharpening in Photoshop

Give your photos a professional finish with sharpening in Photoshop. Learn to enhance details, create contrast, and prepare your images for print, web, and social media.

C
chrisjbirchall
Sep 13, 2006
Does anyone have any magic silver bullet for me to try

It’s called Adobe Gamma – and you’ll find it in Control Panel.
PF
Peter_Figen
Sep 13, 2006
A screen grab will automatically be in Monitor RGB, so in order to view that properly, you would have to either assign Monitor RGB (or hopefully your custom monitor profile) or temporarily change your RGB working space to Monitor RGB to view the file through. If you want your screen grab to be in sRGB, you have to first assign Monitor RGB and then convert to sRGB.

You other application that are not color managed can only display using Monitor RGB, since they know no different, although CaptureOne should be able to use your monitor profile (it does on the Mac version).

The differences you are seeing are almost undoubtedly the differences between your actual monitor behaviour and sRGB. The farther your monitor is from sRGB, the greater the difference you’re going to see in your non-colormanaged applications.

This is all exactly the same as learning to play guitar. Once your realize that three or four chords can make a thousand songs, it’ll all fall into place and your won’t worry about it any more.
MP
Mike_Privacy
Sep 13, 2006
OK, I get all that, but the other part is that sRGB files saved as sRGB files, and opened in Photoshop are also off, until I turn on proofing colours. I can see how the copy/paste things would be off, but why would a saved srgb file be off too?

….Mike
MP
Mike_Privacy
Sep 13, 2006
for that matter, argb files are also off.

….Mike
C
chrisjbirchall
Sep 13, 2006
Mike: It was your comment about having a "good grasp of colour management" that led to my rather flippant post #1.

Forgive me, I’ll expand on it.

Basically, Photoshop is most likely the only colour managed application on your computer. For it to communicate correctly with your monitor you need to profile the monitor.

Adobe Gamma is the tool to use. Or if you have an LCD screen, one of the third party alternatives.

Either way you MUST correctly profile your monitor to ensure what you create in Photoshop is what the rest of the world will see.

Also, don’t forget to convert any file which are destined for the web – or for viewing on a non colour managed app – to sRGB before saving.

Hope this helps.

Chris.
MP
Mike_Privacy
Sep 13, 2006
Hi Chris

Thanks for the post. I know about adobe gamma and I have disabled it, as I have calibrated the monitor using my Eye 1 colourimeter.

….Mike
C
chrisjbirchall
Sep 13, 2006
Have you removed Adobe Gamma Loader from the Start-up menu?
MP
Mike_Privacy
Sep 14, 2006
Chris, yes, using msconfig it is disabled. It’s not loaded. That aside, if it was adobe gamma then all apps would show this problem, but it’s only photoshop.

….Mike

How to Master Sharpening in Photoshop

Give your photos a professional finish with sharpening in Photoshop. Learn to enhance details, create contrast, and prepare your images for print, web, and social media.

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