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|| SportsShooter.com: Member Message Board
Convert an icc profile to a csf file? Color Management help.
Grant Blankenship, Photographer
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Macon | GA | USA | Posted: 12:19 PM on 09.17.09 |
->> Nerdy color management question here.....
So our press people excitedly handed me an icc profile yesterday which they expect to remedy some reproduction issues. The expectation being that it could be employed in Photoshop. It cannot be as far as I can tell.
So, first, how does one employ an icc profile in Photoshop? If you can't, how do you convert an icc profile into a csf file, the preferred Adobe file for color profiles? Also, what other way could I use this profile in a workflow? |
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Diana Porter, Photographer
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Houston | TX | USA | Posted: 1:30 PM on 09.17.09 |
| ->> On a Mac, install the ICC into Library/Colorsync/Profiles. Photoshop will read it from there. |
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Grant Blankenship, Photographer
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Macon | GA | USA | Posted: 1:52 PM on 09.17.09 |
| ->> Should I still specify the space in the color settings in Photoshop? |
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Grant Blankenship, Photographer
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Macon | GA | USA | Posted: 1:52 PM on 09.17.09 |
| ->> And thanks. |
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Fj Hughes, Photographer, Assistant
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Baltimore | MD | USA | Posted: 7:56 PM on 09.17.09 |
->> I assume you want to use this profile to proof files during color correction?
After installing profile:
1 Open file in P'shop. I would make a duplicate of the file to work on.
2 Go to View>Proof Setup>Custom.
3 Select ICC Profile. Make sure "simulate paper color" and simulate black ink are not checked. Click "OK".
4 Make sure view>proof colors is checked.
5 Correct color and exposure. you can use view>gamut warning to check for out of gamut colors.
6 Edit>Convert to Profile. Use "Black Point Compensation."
When you save the file, I would add some sort of suffix to differentiate from the original file. |
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Grant Blankenship, Photographer
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Macon | GA | USA | Posted: 8:38 PM on 09.17.09 |
->> Actually, the idea is to save the photo with the icc profile so in the end it only has the gamut of colors the presses our paper prints on now. So, yeah, in a sense I guess we are just proofing images.
What we need is a way to seamlessly incorporate the profile into our workflow so that once we save the file, it is ready for the press. |
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Fj Hughes, Photographer, Assistant
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Baltimore | MD | USA | Posted: 7:54 AM on 09.18.09 |
| ->> This should accomplish that for you. You could set your working space in Edit>Color Settings to that profile but I would recommend that. |
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Grant Blankenship, Photographer
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Macon | GA | USA | Posted: 8:43 AM on 09.21.09 |
| ->> Actually, I haven't been able to figure out how to set the icc profile to my working profile. That's exactly what I want to do. Can you tell me how to do that? So far Photoshop has proven unable to accept an icc profile for that purpose. Again, barring using the icc profile, could someone show me how to convert an icc profile into the Adobe proprietary csf profile? |
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Chuck Steenburgh, Photographer
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Lexington | VA | USA | Posted: 12:35 PM on 09.21.09 |
->> Grant - You do NOT want to set the target color space as your working profile. That's not how it works.
You want to work in a wide, well-behaved gamut such as Adobe RGB or ProPhoto RGB. Once you have made all of your adjustments, you want to CONVERT your image to the color space of your press (i.e. what the press guys gave you) before saving it.
Don't confuse working space - the color mapping in which PhotoShop performs all of its mathematical magic on the colors in your images - with the color space of the destination output device. Use a standard color space as your working space, then as your last step before saving convert to the color space of your destination output. |
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Grant Blankenship, Photographer
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Macon | GA | USA | Posted: 6:02 PM on 09.21.09 |
| ->> OK. Got you. This is sort of like when we had a CMYK profile based on what our presses did. The last step was to make the CMYK conversion and save the image as press ready. Same deal? |
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Chuck Steenburgh, Photographer
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Lexington | VA | USA | Posted: 3:23 PM on 09.22.09 |
->> Yes - color spaces like sRGB and Adobe RGB aren't based on hardware; they are more of a theoretical standard that can be processed without outlandish results. But once you're done playing with all those sliders and other goodies, convert all those colors into what your output device can reproduce - represented by the ICC profile they gave you.
Of course, there's a whole 'nother class on the various conversion methods available under PhotoShop - but for what I do, "perceptual" intent works pretty well. You may need to experiment with those settings. But I'd start with that one. |
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