-
1. Re: Weird colour profile problem
Bart Cross Oct 8, 2010 5:20 AM (in response to jt77474)The screen capture is not colour managed, which explains it being a bit yellow on the first paste, but subsequent pastes getting darker is weird, but could have something to do with layers 'blend mode'.
-
2. Re: Weird colour profile problem
Noel Carboni Oct 8, 2010 6:00 AM (in response to jt77474)Nothing unexpected is happening here.
Calibrating and profiling does NOT make your color-managed and non-color-managed applications match, nor make your screen grabs containing mixed output from color-managed and non-color-managed apps more accurate, in itself. In fact, it does just the opposite. Try to understand that, after profiling, your color-managed applications are putting out ACCURATE color while the non-color-managed applications are putting out INACCURATE color.
If your profiling process has delivered a profile that makes the color values more yellowish (e.g., reduces blue values) to compensate for your monitor's tendency to make them more bluish than they should be, then you would expect to see exactly what you're seeing. Each new screen grab and paste, unless you go through the process I list below, amplifies the differences in the pixels that have gone through the process more than once.
Unless your system is set up to use sRGB as the monitor profile, if you want the image within a screen grab from a color-managed app (like Photoshop) to exactly match the content of your color-managed document, you MUST go through this:
1. Grab the screen.
2. File - New and paste the capture into Photoshop.
3. Edit - Assign Profile, and choose your MONITOR profile, provided by the calibrator.
4. Edit - Convert to Profile, and choose sRGB (for example).
5. Publish the image.
In step 3 you're telling Photoshop that the image was captured from YOUR MONITOR, and that the monitor's profile describes what's in it. Then you're converting the color values in that image in step 4 to a document profile everyone understands.
-Noel
P.S., From time to time I try to advise people on how to make their color-managed and non-color-managed output match more closely, though doing so always seems to invite a bunch of heckling from small-minded people who think that even wanting to accomplish that is somehow bad. If you'd like to try to do that, adjust your on-monitor controls to make the display look more yellowish (e.g., lower the blue a bit) and then re-calibrate/profile your display. You should find that the profile that's generated by the recalibration will then cause less color shift than what you're now seeing.
-
3. Re: Weird colour profile problem
D Fosse-QDEaQ1 Oct 8, 2010 8:55 AM (in response to Noel Carboni)I told you all that two months ago, to your fierce protests. You called it...heckling.
But I see you're beginning to grasp the basic concepts now. That's good. Maybe it wasn't all in vain.
-
4. Re: Weird colour profile problem
Noel Carboni Oct 8, 2010 9:10 AM (in response to D Fosse-QDEaQ1)Glad to see you again here, Dag. But please, let's not argue or dredge up the past any more. Your opinion on what others may understand or have understood in the past is unwanted and unneeded as it only serves to cause conflict.
The key point here is that people really DO care about whether their color-managed and non-color-managed stuff matches as closely as possible. I think we all agree that having the profile do the minimum amount of work is a good thing.
-Noel
-
5. Re: Weird colour profile problem
D Fosse-QDEaQ1 Oct 8, 2010 9:13 AM (in response to Noel Carboni)I'd just advise you to be a little more careful with the words heckling and small-minded.




