Color Management Module In Photoshop

Question: A color management module is the software that defines the mathematical manipulations by which color conversions are made?

Thanks for your quick reply.
From: ronzie99 <[email protected]>
To: IronEyesWally <[email protected]>
Sent: Thursday, December 8, 2011 1:09 PM
Subject: Color Management Module In Photoshop
Re: Color Management Module In Photoshop created by ronzie99 in Photoshop Elements - View the full discussion
There are different types of icc\icm profiles used in color management.
First is the color workspace. PSE is by default set to create files in the color space embedded in the image opened and if not then the default color space of your choosing. The type of color space describes the gamut limitations of that color space.
Next are device specific color profiles. These are the display and printer profiles but can also exist for input devices. These profiles serve as tables to fit the measured characteristicsof the device to the color space requireed. For output devices there are Rendering Intents that can be chosen to determine how the limitations of a device can be best interpolated to fit the color space of an image into the limitations of the device for best appearance.
A practical way to think of a display to output workflow think of the color space situated between the displayed image and the output device with the color space in the middle defining limitations as a standard. The devices profiles are then measured against the standard color profile to create corrections or translation table so they react appropropriately to present the image on the display for the output device target profile in an attempt to get a 'what you see is what you get' envirionment for the specific devices used.
You need to create via calibration either by you (better) or insttall from the manufacturer a profile for the display. This matches your display device to the 'standard' profile. If you go to print then you'll need to install a printer profile (which varies by ink and paper type) either OEM or from paper suppliers or created by a measuring device you can purchase if you go 'rogue' regrding non-OEM inks and papers.
PSE does not have a soft-proof mode built in like Photoshop. It does have a setup, though, where it will let you assign every time you print an output profile that you select if you want PSE to directly manage the printer for tonality and color, in which case in the printer driver itself you disable color management only leaving the driver to descrive the image quality and surface type of the paer chosen and choosing none or leaving icm unchecked in the printer driver. The profile is selected in the PSE printer driver under advanced.
Soft proof mode is where the display translation is further manipulated to approximate the printer output. This can happen because you have calibrated your monitor to a standard and a printer tothat same standard. I have an add-on for PSE 10 called Elements + that in addition to lots of filters and effects adds some soft-proofing capability and curve color level adjustments to PSE. http://www.simplephotoshop.com/elementsplus/index.htm
In practical terms that is the function of color management.
BTW: The defacto color space for the Internet web browsers is sRGB. Use this when correcting color for web distribution.
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I'm having an issue that I believe has been isolated to Acrobat X related to Color Management, but was referred to this Photoshop forum because more experts in color management tend to read here. My thread in the Acrobat forum with several updates on tests is here: http://forums.adobe.com/message/4646650#4646650
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i wasn't able to follow your lengthy post, and the color management chain is too complicated (for me) to address here other to say Acrobat reads tagged elements and converts their colors to Monitor RGB (so you must have stripped the profiles in the PDF, and the Acrobat CMS is applying or passing through the wrong profile)
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these panels were grabbed from an InDesign Export PDF process, but Photoshop should have similar options somewhere

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Noel:
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Noel:
I have custom calibrated with an Eye-One puck. I was just searching around looking for a way to verify that indeed the profile was in place, concerned that it might not be, and came across this advice in the links attached to my first message. But my ultimate goal was to verify that indeed I had my monitor profile in place.
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http://www.pusztaiphoto.com/articles/colormgmt/win7/default.aspx
the authors are suggesting that ticking the "Use Windows Display Calibration" is a necessary step to ensure that your custom profile is loaded and remains loaded. Although I admit that this seems illogical (hence my question) the author of the article linked above asserts that checking this box does not relate only to a visual calibration via the "Calibrate Display" button. Indeed, in referring to the Microsoft description of this module, where it says that"Windows profile loading" should only be used in conjunction with the visual calculation function his advice his is to "[i]gnore it," indicating that the people who wrote the help article misunderstood its function.
And, as noted above, after trying this I did notice a profile shift with my custom calibration in place, so it did pique my curiosity. In the last analysis however my ultimate goal is to know that my custom profile is properly loaded.
Any thoughts on what is the best way to do that?
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Color Management Questions
My problems started when I was getting pictures that were too dark from my HP 9180 printer after having gotten very nice prints for a long time. I had obviously started to do something differently inadvertently. The only thing I think that is different is that I got a new 23 inch monitor, which does produce much brighter on-screen images. So, I started to do some research and know just enough about color management to be slightly confused and have some questions that I hope someone can give me some help with.
Equipment Background
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I also use Photoshop Elements 8, where there are a variety of settings possible for printing.
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My printer is an HP Photosmart Pro B9180 Printer, where there are also a variety of settings possible.
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Everything I read about PSE 8 (same sources) says to set PSE 8 to ‘Always Optimize for Printing’ under Edit>Color Settings in order to get the best prints. This displays photos based on the Adobe RGB color space.
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I understand that this is the image space of the image I took with my camera and that information is embedded in the image. Correct?
Next, there is Printer Profile. But, from what I have read, this is where the IEC profile of the paper being printed on is supposed to be selected, isn’t it?
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I know that this is a long post, but it helped me to clarify my ‘issues’. Thank you for any and all suggestions, answers, guidance and help.

RIK,
Some printers have long names, esp. HP printers, and PSE gets ":confused." In control panel>devices and printers, right click on the default printer, go to printer properties, and rename the default printer to something short, e.g. "Our Printer." That may fix it..

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Greetings beautiful Windows people!
I am stumped with a Windows Vista problem — it is not displaying sRGB properly.
I posted bigger files here if this is easier to follow
http://www.gballard.net/windows_srgb/
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How Photoshop is displaying Tagged sRGB on the two machines:
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Setting Windows Vista> Control Panel> Color Management: to sRGB fixed the problem (above, Photoshop is displaying the file correctly now, and sRGB is behaving as expected in both managed and unmanaged Web browsers).
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I suspect the client has a bad hardware puck and/or buggy profiling package that needs an update because it appears to be even causing Photoshop to display sRGB improperly using the custom profile (and this is happening on eight of the client's Windows boxes).
He is using a glossy screen on the laptop I saw if his package can't handle it).
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Thank you Chris,
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I'm trying to develop a workflow for bringing renders from 3ds Max into Photoshop, and having them look the same in both programs. The issue is that Max isn't color managed, so things can shift.
There's a good article on the subject here:
http://www.artstorm.net/journal/2009/07/color-management-wide-gamut-dell-2408/
So, to repeat what Johan is describing in the article, here's a test I've been doing:
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I think this is overcomplicating it, and with a quite a few stumbling blocks on the way.
To name one: using the monitor profile in the document accomplishes only one thing - turning display color management off in Photoshop, thus reducing it to the same non-color managed state as 3ds Max. Since the two profiles are the same, no change happens, and you just get what's known as a null transform. IOW you gain nothing and lose a lot.
The two will be consistent - and both wrong. That's why this is never recommended.
Now this is important, so pay attention: If you do this with the Dell in native wide gamut mode, you will be scr*wing up your files beyond recognition. Take that file into a properly color managed scenario, and it will be miles off.
I think the only workable approach in this case, since you have to use software that isn't color managed, is to put the monitor in sRGB mode. There's just no way you can work with a wide gamut display in this scenario and keep your sanity. Or, as I suggested in an earlier post, sell it and get a standard display.
For this to work, you need an sRGB-type monitor profile. That can be straight up sRGB for "close enough", or a calibrator-produced profile made with the unit in sRGB mode. That would be better for Photoshop, for 3ds Max it doesn't make any difference because it'll just ignore the profile anyway.
EDIT: I should add, just in case it's still unclear, that the reason sRGB "works" in a non-color managed setting while other profiles and color spaces don't, is simply because that's the way an average monitor displays. The Dell U2410 is not an average monitor. If we all had U2410s, and I mean everybody, then Adobe RGB would have been the consensus standard. But we don't and it's not. So you have to play by the majority rule.

No color management option is not available in photoshop cs5 mac

Currently have CS5 for Mac; upgraded to Mavericks and now the "no color management option" in the print dialog box is not selectable. Any help with this please advise.

If we're looking at the same thing that's greyed out (the Color Mode setting for an Epson printer), to make that active you have to first choose Color Matching, which is in the same menu that Printer Settings is on, and then choose Epson Color Controls. But on my Mac, Color Mode is already set to "Off (No Color Management)" even though it's grayed out.
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Color Management: Light image shows correct in Photoshop, but not in Illustrator

Have a light cyan (13% dot max gradient piping the text) emboss letters spot channel .psd placed in AI. In Photoshop the image shows up great, but in Illustrator is notvisible (goes to white).
Color profile is good & generated with hardware device i1Profiler
Same color settings in both AI & PS- North Amercian General Purpose in both
Assign profile tried both Working CMYK US WEB v2 & don't color manage
Illustrator (left) Photoshop (right)

Figured it out. Happening because this is spot channel. For my purpose am creating a renders of a package, so converted the spot channel to CMYK.
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Kow I am not the only one to have discovered the dummy white trick, as printers such as SGS are using this. Can anyone offer any more insight into why we have to use a dummy white layers, and how to keep a spot channel intack on files like this one with the light tinted gradation???

Color Managment between Photoshop and Illustrator

Hi All,
Can anyone give me some tips of how to do the color managment in both Photoshop and Illustrator? I'm using Ai CS3 and PS CS3, although I have using CMYK mode in both software and having them in same Color profile setting, when using Ai to open a PS file the color is still different from what I see in PS. I would like to know is it possible to make it looks the same?
Thanks

Imo, you should establish a rather strict
color management strategy (examples):
1. Define in Photoshop:
RGB: AdobeRGB(98)
CMYK: ISOCoated
Gray: Black Ink ISO Coated (Custom profile)
Spot: Black Ink ISO Coated
2. Distribute this profile set by Bridge
3. Convert RGB images in Photoshop to CMYK
4. Define Color space in Illustrator as CMYK
5. Open the Photoshop file or the Tiff file in
Illustrator: here it looks as expected.
Problems: the CMYK file contains an ICC-profile
which is different to the global CMYK-definition.
Now it depends on the CMS strategies, and that's
the point where I'm usually giving up.
Best regards --Gernot Hoffmann

Color Management Module In Photoshop

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