33 Replies Latest reply on Oct 19, 2010 4:48 AM by Light Illusion

    ICC Display Profiles

    Light Illusion Level 1

      I didn't see this forum initially, so posted a question in the CinemaDNG one...

       

      So, the simple question.

       

      I am looking for a display profile that desaturates the screen, making the display mono.

      Ideally, one with a gamma change too, so I can see a change in the grey scale, as well as the lack of saturation.

       

      Can anyone supply such a thing?

       

      Thanks,

       

      Steve Shaw
      LIGHT ILLUSION
      steve@lightillusion.com
      +44 (0)7765 400 908
      www.lightillusion.com
      Skype: shaw.clan

      LUTs, CUBEs + GAMMA CURVEs
        • 1. Re: ICC Display Profiles
          bret_linford Level 1

          Hi, Steve.

           

          To better understand your scenario, may I ask why you need this?

          • 2. Re: ICC Display Profiles
            Light Illusion Level 1

            Hi Bret,

             

            To be honest, and I don't want to appear rude, but I don't want to get into

            a discussion about the reasons for my request.

            I am just in need of some example Display ICC profiles as described.

             

            Can you help?

             

            Thanks,

             

            Steve

             

             

            Steve Shaw

            LIGHT ILLUSION

            steve@lightillusion.com

            +44 (0)7765 400 908

            www.lightillusion.com

            Skype: shaw.clan

             

            LUTs, CUBEs + GAMMA CURVEs

            • 3. Re: ICC Display Profiles
              bret_linford Level 1

              I would think you could take a current display profile into a profile making software like Profiler or ProfileMaker tweak the color saturation out of it and then you'd have a 'greyscale' monitor profile. I could be wrong, though...

              • 4. Re: ICC Display Profiles
                Light Illusion Level 1

                Yep, I thought that, and have tried with various Profile editing software

                (including ProfileMaker), with no luck.

                 

                Probably me, but... No one else has yet provided such an ICC profile.

                I live in hope.

                 

                 

                Steve Shaw

                LIGHT ILLUSION

                steve@lightillusion.com

                UK: +44 (0)7765 400 908

                www.lightillusion.com

                Skype: shaw.clan

                 

                LUTs, CUBEs + GAMMA CURVEs

                • 5. Re: ICC Display Profiles
                  Level 4

                  Hm.

                   

                  Looks like an excuse to post that link to a commercial site.  Smells like spam.

                  • 6. Re: ICC Display Profiles
                    Light Illusion Level 1

                    Nope, not at all.

                    The sig is standard on my mail.

                     

                    All I'm after is the ICC profile I have requested...

                     

                    Please, if someone can supply one?

                     

                     

                    Steve Shaw

                    LIGHT ILLUSION

                    steve@lightillusion.com

                    UK: +44 (0)7765 400 908

                    www.lightillusion.com

                    Skype: shaw.clan

                     

                    LUTs, CUBEs + GAMMA CURVEs

                    • 7. Re: ICC Display Profiles
                      Light Illusion Level 1

                      I should have added that I didn't want to talk about the reasons for my

                      request because of the attitude I encountered on the Photoshop forum...

                       

                      If it really matters, I am looking at DI workflows using IC profiles rather

                      than 3D LUTs, which are presently the standard in our industry (film and tv)

                      and are very, very accurate. I'm looking to see if ICC profiles can offer

                      the same level of accuracy, and so far I can't get them to be as accurate.

                       

                      If I can get an ICC profile as requested it will help with my research.

                       

                      Does that help?

                       

                       

                      Steve Shaw

                      LIGHT ILLUSION

                      steve@lightillusion.com

                      UK: +44 (0)7765 400 908

                      www.lightillusion.com

                      Skype: shaw.clan

                       

                      LUTs, CUBEs + GAMMA CURVEs

                      • 8. Re: ICC Display Profiles
                        gator soup Level 4

                        Tai Lao,

                         

                        I know you will get a good read out of this one:

                         

                        How to turn off all colour management?

                        http://forums.adobe.com/thread/736358?tstart=0

                        • 9. Re: ICC Display Profiles
                          Light Illusion Level 1

                          Yep, like I said, not exactly what I was hoping in the way of support from

                          such forums :o(

                           

                          All I'm looking for is help with my request, which on that forum was for

                          what turned out to be a bug in Photoshop.

                           

                          What it has shown is a lack of understanding on DI workflows - and a desire

                          to berate without supplying information. I have explained the workflow my

                          industry uses, but have had no workflow suggestion by return, just negative

                          comments. But as Photoshop is not a DI system I guess that kinda makes

                          sense.

                           

                          I really hope that isn't going to happen again.

                           

                          All I want is a monitor display ICC profile that has saturation reduced to

                          zero.

                           

                          Can this be done?

                           

                          It is looking like it can't, and that such display control only work with

                          ICC compliant software systems. We don't use such systems in the film and tv

                          industry for DI (at the moment), which seems to be something that is not

                          understood.

                           

                          I just want to be sure that this is the case - that monitor display ICC

                          profiles can/cannot control saturation (gamut).

                           

                          I am in dialogue with Lars Borg on this, so hopefully we can get to a

                          sensible answer. I have serious interest in ICC profiles, but they may or

                          may not be capable of what our industry needs.

                           

                          Thanks.

                           

                           

                          Steve Shaw

                          LIGHT ILLUSION

                          steve@lightillusion.com

                          UK: +44 (0)7765 400 908

                          www.lightillusion.com

                          Skype: shaw.clan

                           

                          LUTs, CUBEs + GAMMA CURVEs

                          • 10. Re: ICC Display Profiles
                            Level 4

                            All of this leaves me still suspecting attempts at self promotion; but I'll bite anyway:

                             

                            Light Illusion wrote:

                             

                            …But as Photoshop is not a DI system…

                             

                            What does "DI" stand for in your lingo?  It can't possibly mean "digital imaging", otherwise that quoted sentence would be nonsensical.

                             

                             

                             

                            ____________

                            Wo Tai Lao Le

                            我太老了

                            • 12. Re: ICC Display Profiles
                              Light Illusion Level 1

                              Sorry, Digital Intermediate.

                              The process of digitally grading films.

                               

                              I should have explained better.

                               

                               

                              Steve Shaw

                              LIGHT ILLUSION

                              steve@lightillusion.com

                              UK: +44 (0)7765 400 908

                              www.lightillusion.com

                              Skype: shaw.clan

                               

                              LUTs, CUBEs + GAMMA CURVEs

                              • 13. Re: ICC Display Profiles
                                Rick McCleary Level 3

                                Hi Steve -

                                 

                                The real color management experts hang out at the ColorSync list hosted by Apple. Very smart guys there - a good percentage of whom actually write the software we use.

                                 

                                Use this link to subscribe. Ask your question and you'll definitely get answers.

                                 

                                Keep us posted on what you find out.

                                 

                                HTH,

                                Rick

                                • 14. Re: ICC Display Profiles
                                  Light Illusion Level 1

                                  Thanks Rick,

                                  That’s much appreciated!

                                   

                                  Steve

                                   

                                   

                                  Steve Shaw

                                  LIGHT ILLUSION

                                  steve@lightillusion.com

                                  UK: +44 (0)7765 400 908

                                  www.lightillusion.com

                                  Skype: shaw.clan

                                   

                                  LUTs, CUBEs + GAMMA CURVEs

                                  • 15. Re: ICC Display Profiles
                                    p_d_f Level 2

                                    An ICC monitor profile is a file that describes the state of that monitor to applications that can use it. It's sort of passive in that way. If you have a way of calibrating your screen to the desaturated state you want, you should be able to then build a profile of that, but it still will only reflect the state of calibration, not alter it.

                                     

                                    Now there IS a "Desaturate Monitor by xx%" command in the Color Settings Advanced dialog box that will definitely desaturate your screen on top of your monitor profile, but it only works inside of Photoshop.

                                    • 16. Re: ICC Display Profiles
                                      Light Illusion Level 1

                                      I think we are getting to the nub of the issue here.

                                       

                                      ICC display profiles work with the OS (Windows and Mac natively, Linux via

                                      xCalib) as a way of calibrating a monitor via programs such as EyeOne Match

                                      from X-Rite.

                                       

                                      No need for any other program to be active, so any image is displayed via

                                      this profile.

                                       

                                      As I said (I think in this thread) DI kit is not ICC based at all.

                                       

                                      So, I am looking for an IC profile that can alter gamut (hence the request

                                      for desaturated as that is the ultimate gamut change).

                                       

                                      But, I now think such display profiles only alter the vcgt component - which

                                      are 1D gamma curves only - so no gamut control.

                                       

                                      Looks like ICC profiles are not yet suitable for DI work.

                                       

                                      :o(

                                       

                                       

                                      Steve Shaw

                                      LIGHT ILLUSION

                                      steve@lightillusion.com

                                      UK: +44 (0)7765 400 908

                                      www.lightillusion.com

                                      Skype: shaw.clan

                                       

                                      LUTs, CUBEs + GAMMA CURVEs

                                      • 17. Re: ICC Display Profiles
                                        MJOrts Level 3

                                        Hi Steve,

                                         

                                        What do you mean by "gamut control"?  Would you mind giving further details on why you want a display profile that takes images values and displays them in grayscale?  This sounds more like color correction than color management.  Why not apply a document profile or a soft proof to your images to convert their color values to grayscale?  Is your final output going to be a grayscale output device or medium?

                                        • 18. Re: ICC Display Profiles
                                          Light Illusion Level 1

                                          I'm actually just exploring the capabilities of monitor display ICC

                                          profiles.

                                           

                                          I need to control colour gamut as most of today's monitors are over gamut

                                          for standard tv displays (Rec709).

                                           

                                          I can't apply a document proof or soft proof as the DI systems I use are not

                                          ICC based. Only the OS (Windows or Mac) can use ICC profiles for monitor

                                          calibration, although I am now becoming aware such calibration is just 1D

                                          RGB gamma curves.

                                           

                                           

                                          Steve Shaw

                                          LIGHT ILLUSION

                                          steve@lightillusion.com

                                          UK: +44 (0)7765 400 908

                                          www.lightillusion.com

                                          Skype: shaw.clan

                                           

                                          LUTs, CUBEs + GAMMA CURVEs

                                          • 19. Re: ICC Display Profiles
                                            p_d_f Level 2

                                            It sounds like you need to build into your software the same sort of profile abilities that Photoshop has, including the ability to soft proof, which will use multiple profiles to simulate color space, which could be another monitor space if you wish. It's not a limitation of ICC so much as putting the tools into your industry's software. The architecture should be pretty well documented to implement and it seems like it would completely solve your problem. It works very very well inside of Photoshop.

                                            • 20. Re: ICC Display Profiles
                                              MJOrts Level 3

                                              Steve, could you explain how it is a problem in your workflow to have a monitor display that is larger than the gamut of the tv display Rec. 709 space/gamut?  Does this create a posterization effect when editing images on the monitor?

                                               

                                              Using Apple's Colorsync Utility, I compared the HDTV (Rec. 709) Lab plot with my monitor display space, and they almost matched each other in gamut, with the HDTV space being a little larger in the reds and blues.  Comparing my monitor to SDTV NTSC, the NTSC lab plot was a little bit smaller, and with the exception of some blues appeared to fit completely within the monitor space.

                                               

                                              My understanding is that a monitor profile uses a gamma curve per channel because it's just reading in RGB values from the OS or application and then outputting them in such a way that the appearance is relative to how the monitor would output a known value physically measured on it's screen (at least for 3rd party monitor calibrators).  Is there a different way this could be represented for feeding a monitor instructions on how to display color values?

                                              • 21. Re: ICC Display Profiles
                                                Light Illusion Level 1

                                                Simple answer is that if the monitor gamut is larger than the intended

                                                target (delivery) requirement, the monitor isn't calibrated.

                                                 

                                                The colour you see while working will not be the same as the deliverable.

                                                 

                                                For this line of work (DI) almost is not good enough - the calibration has

                                                to be as near perfect as possible.

                                                Also, most new generation monitors - plasma, LCD and especially LED - have a

                                                much wider gamut that Rec709 - especially in green.

                                                This is not a good thing.

                                                 

                                                1D RGB plots are not anywhere near good enough as they do not allow for

                                                gamut control or cross-colour effects. Both are needed for accurate

                                                calibration.

                                                 

                                                Steve

                                                 

                                                 

                                                Steve Shaw

                                                LIGHT ILLUSION

                                                steve@lightillusion.com

                                                +44 (0)7765 400 908

                                                www.lightillusion.com

                                                Skype: shaw.clan

                                                 

                                                LUTs, CUBEs + GAMMA CURVEs

                                                • 22. Re: ICC Display Profiles
                                                  gator soup Level 4

                                                  Simple answer is that if the monitor gamut is larger than the intended

                                                  target (delivery) requirement, the monitor isn't calibrated.

                                                   

                                                  The colour you see while working will not be the same as the deliverable.

                                                   

                                                  so what that is saying, if i am reading correctly, is if my Photoshop monitor has a "larger" gamut than the "target" destination space (let's use cmyk and sRGB for examples here since no "target" was specified) that somehow means my monitor profile "calibration" is invalid in Photoshop

                                                   

                                                  that should really be posted on the original thread BECAUSE i am sure Chris Cox (and the millions of users who use Photoshop to soft proof device spaces and standards on a daily basis) would be interested in that revelation

                                                  • 23. Re: ICC Display Profiles
                                                    Light Illusion Level 1

                                                    Now you see my problem...

                                                     

                                                    I'm trying my hardest to understand how this works,

                                                    But, remember that Photoshop has internal source and target profiles, which

                                                    I assume work with the monitor profile you ensure full calibration.

                                                     

                                                    But that only work with ICC based systems, of which there are few that can

                                                    be considered for DI workflows as the colour capability (creative

                                                    requirement) is very different that Photoshop or AE.

                                                     

                                                    I am still working on this, but I am getting a better understanding of the

                                                    realities.

                                                     

                                                     

                                                    Steve Shaw

                                                    LIGHT ILLUSION

                                                    steve@lightillusion.com

                                                    +44 (0)7765 400 908

                                                    www.lightillusion.com

                                                    Skype: shaw.clan

                                                     

                                                    LUTs, CUBEs + GAMMA CURVEs

                                                    • 24. Re: ICC Display Profiles
                                                      Larry Tseng Level 1

                                                      Steve,


                                                      Pardon me if my example is a little bit off since I've not heard of DI until now, but if I am to display a SMPTE-C RGB TIFF accurately on a super wide gamut monitor without going through Photoshop, I would use LittleCMS to first convert the original TIFF to a new TIFF using SMPTE-C for the source profile, an accurate monitor profile for the destination, and with colorimetric rendering intent set either to absolute or relative depending on my needs. I would then view the new TIFF on the monitor while making sure that the display path is not color managed. The reduction in the range of colors should automatically be taken care of by this process.


                                                      (You can achieve the same results in Photoshop, but you need to use a softproofing workflow to do it.)


                                                      Two roadblocks come to mind regarding ICC profiles:


                                                      1. You'd have to write a viewing application around LittleCMS so that you can make use of its color engine to do color conversions.


                                                      2. Will the process run fast enough to be practical?


                                                      My 2 cents...

                                                       

                                                      Larry

                                                      • 25. Re: ICC Display Profiles
                                                        Light Illusion Level 1

                                                        Hi Larry,

                                                         

                                                        You are dead right... And although we don't use LittleCMS, we do have such

                                                        techniques already for single frame workflows.

                                                         

                                                        The problem is we deal with 2K and 4K images (approx 12MB and 48MB per

                                                        frame) at 24 fps... Real-time.

                                                         

                                                        That's a whole different workflow. Hence the desire to have accurately

                                                        calibrated monitors so that the calibration is not in the data processing

                                                        workflow.

                                                         

                                                        We also need to keep the images in their native format (colour space, etc)

                                                        with just the creative grading changes applied.

                                                         

                                                        It is a very different workflow to Photoshop, which is where I think the

                                                        other forum discussion failed.

                                                         

                                                        I think I now have my answers - monitor display profiles are just 1D RGB

                                                        gamma curves - nothing more.

                                                         

                                                        Thanks for all the input people have supplied.

                                                         

                                                        Steve

                                                         

                                                         

                                                        Steve Shaw

                                                        LIGHT ILLUSION

                                                        steve@lightillusion.com

                                                        UK: +44 (0)7765 400 908

                                                        www.lightillusion.com

                                                        Skype: shaw.clan

                                                         

                                                        LUTs, CUBEs + GAMMA CURVEs

                                                        • 26. Re: ICC Display Profiles
                                                          Larry Tseng Level 1

                                                          Hi Steve,

                                                           

                                                          A parting thought: given source and destination profiles, a LittleCMS-based utility should be able to create a 3D LUT for loading into an existing application thereby giving you and indirect calibration capability via ICC profiles and standard relatively low cost monitor calibration/profiling tools.

                                                           

                                                          Interesting topic.

                                                           

                                                          Larry

                                                          • 27. Re: ICC Display Profiles
                                                            Light Illusion Level 1

                                                            Hi Larry,

                                                             

                                                            That is true, but to be honest the direct 3D LUT calibration tools we use

                                                            are already more accurate than ICC based profiles.

                                                             

                                                            The key here is the probe and profiling tools - and at the moment ICC based

                                                            tools are not as accurate for direct calibration as that is not their

                                                            intent.

                                                             

                                                            I was hoping for a way to take a very accurate 3D LUT and make a clone as an

                                                            ICC monitor display profile. I now realise that is not possible at present.

                                                             

                                                            This has been a very useful exercise though.

                                                             

                                                            Thanks for the input.

                                                             

                                                             

                                                            Steve Shaw

                                                            LIGHT ILLUSION

                                                            steve@lightillusion.com

                                                            UK: +44 (0)7765 400 908

                                                            www.lightillusion.com

                                                            Skype: shaw.clan

                                                             

                                                            LUTs, CUBEs + GAMMA CURVEs

                                                            • 28. Re: ICC Display Profiles
                                                              gator soup Level 4

                                                              I am not a rocket scientist, but that could be an advantage to anyone trying to understand how the Monitor Profile interacts with a source profile in basic color management theory.

                                                               

                                                              After reading both threads, I understand the goal is how to view a Source File faithfully in Photoshop (Ps) and why it doesn't seem to be working.

                                                               

                                                              The best analogy I've ever heard on the basic theory is the language example:

                                                               

                                                              Space = ICC profile

                                                               

                                                              Source Image space represents a French man.

                                                              Monitor RGB space represents a China man.

                                                              The French man can't tell the China man how to display his color because the French man doesn't understand Chinese.

                                                               

                                                              The process needs a translator who understands both languages.

                                                              That is what the Color Management System (CMS) does — it is a language translator.

                                                              It reads the French and translates (or Converts) it into Chinese.

                                                               

                                                              The problem a color-managed application like Ps has here, is the user is not telling the CMS what language its Source Image speaks — so Ps assumes the Source Image is written in its default Working Space (language) and then passes the bad translation to the China man who then paints it wrong on the monitor.

                                                               

                                                              The only way a user can expect a faithful display of his color on a computer is through a color-managed application (like Ps) and a properly "profiled" display monitor — the CMS has to know what language the Source Image speaks before it can translate it for the monitor space.

                                                               

                                                              The only way a user can can expect a faithful display on his final un-managed proofing device is to feed the device Source Images based its native language, or standard.

                                                               

                                                              The simple problem Ps is having here (aside from possibly not having a good monitor profile enabled) is not being told what ICC Profile to apply to the Source Image so it can be faithfully Converted to Monitor RGB.

                                                               

                                                              If I had access to a real color management guru, including Chris Cox, I would first be humble and then respectfully ask him how to build an ICC profile for a DI color space — because with a good DI profile available to Ps, the user can Assign it to his Source Images and faithfully display its color.  It may not be that easy and I could be wrong, but that's what I would be asking since it hasn't been asked yet.

                                                               

                                                              Like Chris Cox said, the current workflow is a lot like the printing industry was using in the 1980s (ie, we don't use profiles because we have turned color managent off).

                                                               

                                                              I think the only way Ps is going to be able to faithfully display the DI source images correctly is if the OP builds ICC Profiles to represent his industry standards, work flows, ie color spaces...

                                                              • 29. Re: ICC Display Profiles
                                                                Light Illusion Level 1

                                                                 

                                                                The current workflow is nothing like printing in the '80s - our industry has

                                                                the most accurate CMS available - it has to in order to match the underlying

                                                                digital data to the various deliverable form, such as TV, film, DCI.

                                                                 

                                                                We can already match Ps fully to the 3D LUTs we use - we can accurately

                                                                convert to ICC profiles for use within PS.

                                                                 

                                                                As I said at the start I use 3D LUTs and ICC profiles and understand both.

                                                                It seems few people here use 3D LUTs, which is understandable.

                                                                 

                                                                My initial request on the Ps thread was to turn off CMS in Ps as were we are

                                                                already fully calibrated via our monitor 3D LUT CMS. Which is separate to

                                                                ICC profiles, and made the use of ICC profiles redundant in that particular

                                                                workflow. It seem this request was very hard for some to understand.

                                                                 

                                                                I do not respect manufacturers attempting to 'bend' requirements to fit

                                                                their model, especially when they have never worked in the real world

                                                                industries. I have worked for print, tv and film, so understand fully the

                                                                workflows they use, including ICC profiles, as I keep saying, but some

                                                                people don't seem to have listened to that.

                                                                 

                                                                I have never been looking for an explanation of how ICC profiles work - I

                                                                know how they work as I use them a lot.

                                                                What I have also found is they can be inaccurate when compared to 3D LUTs -

                                                                through the variations in rendering intent, black point compensation

                                                                settings, conversion space selection, etc. Something that doesn't occur with

                                                                3D LUTs as they are direct translation point-to-point calibration tools,

                                                                which work well for DI, but would not work for the main applications Ps is

                                                                used for.

                                                                 

                                                                (As a side note, a really accurate CMS workflow should never require the

                                                                separate selection of something like black point compensation.)

                                                                 

                                                                This is also why 3D LUTs have been added to AE as it is looking to become

                                                                more adopted in DI workflows, which Ps never will as DI is all about moving

                                                                images.

                                                                 

                                                                So, to sum up, I had 2 reasons for asking questions on these forums - how to

                                                                null CMS on Ps, which I now have an answer to. There is a bug that I was not

                                                                aware of. But why there is not a simple CMS OFF button is a tad beyond me.

                                                                 

                                                                And, display monitor profiles can't do real CMS control - they are vcgt 1D

                                                                RGB gamma curves only, which it seems a lot of people do not know. No one of

                                                                these forums was able to simply state that as a fact for example.

                                                                 

                                                                I'm now good to go, and know what is required for my particular needs.

                                                                 

                                                                Thanks for all the help. It has been very useful.

                                                                 

                                                                 

                                                                Steve Shaw

                                                                LIGHT ILLUSION

                                                                steve@lightillusion.com

                                                                +44 (0)7765 400 908

                                                                www.lightillusion.com

                                                                Skype: shaw.clan

                                                                 

                                                                LUTs, CUBEs + GAMMA CURVEs

                                                                • 30. Re: ICC Display Profiles
                                                                  MJOrts Level 3

                                                                   

                                                                  Hi Steve,

                                                                   

                                                                  Does this product by ARRI describe what you're looking for?

                                                                   

                                                                  http://www.arri.de/digital_intermediate_systems/arricube.html

                                                                   

                                                                   

                                                                  I didn't see it mentioned in this or the other post, but an easier way to consistently keep color management switched off in Photoshop is to set the Color Settings File (CSF) to "Monitor Color" in the Color Settings menu.  Then you don't have to bother using proof setup, everything will automatically go straight to the monitor space in PS without needing to use PS's soft proofing.

                                                                   

                                                                  It sounds like your film workflow uses a device link profile based approach to preserving color across devices, instead of using the intermediary spaces associated with ICC profiles used in traditional Photoshop workflows?  I think ICC supports 3D LUTs and device link profiles, so is the debate more towards device-link vs. intermediary space color management instead of 3D LUT vs. ICC?

                                                                   

                                                                  I'd appreciate your thoughts if you're still following this thread.  Thanks!

                                                                   

                                                                  • 31. Re: ICC Display Profiles
                                                                    gator soup Level 4
                                                                    way to consistently keep color management switched off in Photoshop is to set the Color Settings File (CSF) to "Monitor Color" in the Color Settings menu.

                                                                     

                                                                    I always cringe when I hear that advice given without a disclaimer because it is misleading, and it can set users up to only fool themselves if they don't understand what that setting does.

                                                                     

                                                                    Setting Photoshop's Working RGB to the Monitor Profile — and ignoring source spaces/profiles — tells Photoshop to Assign/Assume/Apply the Monitor Profile to the source image.

                                                                     

                                                                    That means the ONLY source images that will display faithful color (and Convert to other profiles faithfully) in Photoshop are images that have been saved in the current Monitor Profile.

                                                                     

                                                                    Because color professionals should be profiling their monitors at least once a month, it makes almost no sense for them to base their workflow on a temporary custom device monitor profile.

                                                                     

                                                                    Once Photoshop is told the correct profile to use for the source image, it will already be displaying through the monitor profile...modern Photoshop workflows are based on device in-dependant source spaces for this very reasons.

                                                                     

                                                                    Lastly, this was explained in the OP's original thread post #1 by  reference to an old Adobe post by Andrew Rodney, archived here:

                                                                    www.gballard.net/psd/psdcm4678cs.html

                                                                    • 32. Re: ICC Display Profiles
                                                                      Level 4

                                                                      MJOrts wrote:

                                                                       

                                                                       

                                                                      …but an easier way to consistently keep color management switched off in Photoshop is to set the Color Settings File (CSF) to "Monitor Color" in the Color Settings menu…

                                                                       

                                                                       

                                                                       

                                                                      Holy smokes, no!  That's just a way of sticking your head in the sand and ignoring the problem. 

                                                                       

                                                                      That is monumentally wrong.

                                                                       

                                                                      I see Gator Soup has commented already, so I'll bow out.

                                                                       

                                                                       

                                                                      ____________

                                                                      Wo Tai Lao Le

                                                                      我太老了

                                                                      • 33. Re: ICC Display Profiles
                                                                        Light Illusion Level 1

                                                                        Hi MJOrts,

                                                                         

                                                                        That is actually a competitor to our own 32D LUT CMS system - LightSpace CMS

                                                                        :o)

                                                                        (And it's not got the underlying calibration tools, just the LUT stuff - so

                                                                        rather limited).

                                                                         

                                                                        Steve

                                                                         

                                                                         

                                                                        Shaw Clan

                                                                        You don't have to be mad to live here...

                                                                        But it helps.