Your color setup in photoshop is alright. The other thing that you need to do is to determine your soft proof destination, it's under the 'View' option. Make sure that it's on Monitor RGB and turn on soft proofing (ctrl Y) when you are doing images for monitor output. It is *crucial* that your soft proof is setup properly. Your image will look the same in photoshop, icc and non-icc aware programs.
Im working in adobe RGB(199)
Doing all the photoediting, then converting to S RGB IEC61966-2.1, then saving the file as a JPEG.
When I do this, my saved file looks almost identical to the image I edited in photoshop, which is great.
But When I upload the file onto websites like flickr, I see that there is definitely a loss in color.
If I go to view-> proof colors, and I click it, then the colour problem eliminates and that is essentially the image I am getting when I upload the picture.
Does this mean I should leave proof colors on?
What you are seeing is the difference between *your* display profile and sRGB. If you proof for your screen, it'll look good on your monitor, but it's a guess what anybody else is seeing...
Something else I fouind:
Mac proof is Gamma 1.8. The way it would look in a non colormanaged app on an 'old' mac (running Gamma 1.8 );
Windows proof is assuming sRGB (so an sRGB file shouldn't change; an AdobeRGB will look 'flat');
Monitor profile is a non color managed application on your system. (assumes monitor profile: No conversion of colors)
Dosent that mean that if you monitor proof, you're essentially throwing colour management out?
Last edited by mismis; 12th June 2008 at 12:55 AM.
Xti + grip + Really right stuff L-plate.
A monitor profile alters the colors as displayed on a monitor. How would a generic profile (like Adobe RGB) knows what correction is needed on my monitor to display color correctly? And if an application is color space aware, why would I need to tell the OS what color space the app. is displaying?
Again, I repeat I am a newbie in terms of color management, and am not disagreeing for the sake of argument, but hoping to learn.
There are a few things that needs to be cleared up:
1. When a monitor has been profiled by a color calibration device. The color/contrast/brightness are adjusted a known color standard. This applies to Macs or PCs.
2. So when your Mac or PC has been profiled, (assuming the screens are new) the colors for a sRGB image should look the same in Firefox. I just tested an image on both Mac and PC, the look extremely close in color and contrast. They are virtually identical.
3. Hence, when the softproof is defined as Monitor Proof and turned on, your sRGB image will look the same in Photoshop, Windows Fax Viewer, Firefox & Safari.
1. The sRGB or AdobeRGB (eg. adobe1998.icc) profile describe a color space. They are NOT to be used for a monitor.
2. When you profile your monitor, a file is created to align or correct your monitor's color/contrast characteristics to a known standard. This file has the same .icc extension.
So although they have the same file extension and are both called profiles, they work differently.
Unfortunately I have to disagree with this, the monitor profile must NEVER be used in Photoshop. The monitor profile is used to adjust the colors/contrast/brightness of the monitor, it has nothing to do with Photoshop. Also, the color profiling device should also have set the profiled icc file as a default setting in Display Properties.
Just some tips for you. I am using both a Mac and PC so color management can be quite a pain if you don't know what you are doing.
1. Do not double profile your monitor. That means after calibration, using the calibrated ICC profile on Adobe Photoshop is a big no-no. Calibration only sets your monitor to a certain standard but you must stick with either sRGB or Adobe RGB and nothing else.
2. Stick with sRGB in Photoshop if you are editing photos for prints. Most photo labs uses this anyway. Unless you have a 10-ink printer at home, using Adobe RGB won't do much justice to your prints anyway.
3. Before calibration, leave your monitor on for at least half an hour first and keep your display settings to the default value then profile from there.
4. If you are using the newer iMac, the gamma settings should be at least 2.2 and nothing less.
5. Soft proofing or pressing Command + Y (like what wesley mentioned) in Photoshop must be turned on all the time. This will ensure what you see in Photoshop is the same colors in Preview, Safari, Firefox...etc.
6. Use 5500K for photo editing and 6500K for web. Have two profiles for your Mac if possible. Note: Your gray might seems very yellowish on 5500K but your eyes will soon adapt to it in no time.
7. Don't forget to assign a color profile to your images. In Photoshop, go to Edit > Assign Profile and choose either sRGB or Adobe RGB only.
Hope that helps. If you are not sure of anything, just PM me. Cheers!
Also, there doesn't seem to be a way to tell Photoshop CS2 to use (or not to use) the monitor profile. I looked through all the settings and there is no "monitor profile" setting. However, it does load the monitor profile as set by the OS, because on my laptop it complained that my profile is invalid or corrupted (the profile supplied by IBM with the laptop - I didn't calibrate my laptop LCD) when Photoshop is starting up.
Sorry, I don't have enough information on your problem. There could be a few ways to solve this issue. One of the ways is to delete the preference files for color settings. Photoshop will then recreate a default setting.
Btw, if you have not calibrated/profiled your LCD, you are basically working blind from the 1st step. Honestly, the information provided in this thread will not be useful for you. No judgment on you, just stating facts.
Monitor RGB (Photoshop and Illustrator) Creates a soft proof of colors in an RGB document using your current monitor color space as the proof profile space. This option assumes that the simulated device will display your document without using color management. This option is unavailable for Lab and CMYK documents.
To my understanding, a monitor profile file usually contains two parts of information:
1. a look-up table (LUT) which is loaded into the graphics card upon OS startup. This is the calibration part - setting the display to a known white point and gamma (say, 6500K, Gamma 2.2), but doesn't change the gamut. This part could be hardware calibrated or eyeballed.
2. the actual ICC profile - this is measured based on the calibrated monitor characteristic (in other words, based on the display with LUT loaded). This part must be done with colorimeter.
The part that affects everything is the LUT, this makes sure the whole OS environment has the correct white point and gamma. However, the saturation (gamut) is not corrected by the LUT and in a managed environment (eg. Photoshop) the color space mapping is performed between the working space and monitor space (based on that ICC profile).
Last edited by grantyale; 12th June 2008 at 09:53 PM.
My frustration is the inability to afford a good monitor worth all the management trouble...
Anyway, I'm not really that worried about the error message, I know all I need to do to solve it is just to assign a different profile to the monitor in the OS. The exact error message, for anyone curious about it, is:
"The monitor profile 'Lenovo ThinkPad LCD Monitor' appears to be defective. Please rerun your monitor calibration software." and the choices are to ignore or use anyway.
Under color settings, working space (for RGB) is sRGB and no mention of ThinkPad LCD anywhere in Photoshop.