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Vadim50B8
Participant
July 18, 2021
Answered

out of gamut warning is grayed out for sRGB

  • July 18, 2021
  • 4 replies
  • 2334 views

When I set the proof set up to sRGB, no matter what I do with the image, the out of gamut warning is grayed out in the menu. I work with Nikon .NEF files in Adobe RGB and ProPhoto RGB color spaces. If I switch proof set up to CMYK, out of gamut warning is not grayed out and PhotoShop shows out of gamut colors. As I increase saturation out of gamut color regions grow which makes sense. But when I switch back to sRGB proof set up, no matter how much I saturate colors out of gamut warning is still grayed out. PhotoShop release is 22.4.2.

Has anyone observed the same issue?

This topic has been closed for replies.
Correct answer D Fosse

@brad_bronx 

That's perfectly logical.

 

With "preserve numbers" checked, no numbers are changed and so nothing can be out of gamut, by definition. Out of gamut means that numbers "want" to go above 255 or below 0, in one or more channels. As long as all numbers are contained within 0-255, everything is within gamut.

 

That checkbox, on or off, is equivalent to "assign profile" vs "convert to profile". In the first case, numbers stay the same but the meaning is changed, so appearance changes. In the second case, the numbers are changed in order to preserve appearance. That's when it can hit the gamut boundary.

4 replies

B
brad_bronx
Participant
October 14, 2024

I just had the same problem; unchecking 'preserve rgb numbers' in the custom proofing profile dialogue box (View > Proof Setup > Custom...)  un-greyed the gamut warning menu item and let me select it as usual.

D Fosse
Community Expert
D FosseCommunity ExpertCorrect answer
Community Expert
October 14, 2024

@brad_bronx 

That's perfectly logical.

 

With "preserve numbers" checked, no numbers are changed and so nothing can be out of gamut, by definition. Out of gamut means that numbers "want" to go above 255 or below 0, in one or more channels. As long as all numbers are contained within 0-255, everything is within gamut.

 

That checkbox, on or off, is equivalent to "assign profile" vs "convert to profile". In the first case, numbers stay the same but the meaning is changed, so appearance changes. In the second case, the numbers are changed in order to preserve appearance. That's when it can hit the gamut boundary.

    B
    brad_bronx
    Participant
    October 14, 2024

    Agreed! (I typically have that box unchecked, but must have hit it for some reason recently, and it's sticky, so it stayed checked when I opened subsequent files some time later. Since that isn't something I usually mess with, it took me a while to notice what had changed)

    DavD
    DavD
    Known Participant
    June 13, 2024

    Well, jumping ahead 3 yrs I'm suffering from the same affliction...I've even turned off my GPU acceleration.

     

    c.pfaffenbichler
    Community Expert
    c.pfaffenbichlerCommunity Expert
    Community Expert
    June 13, 2024

    Could you please post screenshots with the pertinent Panels (Toolbar, Layers, Options Bar, …) visible? 

    Please read this (in particular the section titled "Supply pertinent information for more timely and effective answers”):
    https://community.adobe.com/t5/using-the-community/community-how-to-guide-tips-amp-best-practices/td-p/11601738?page=1

    jane-e
    Community Expert
    jane-eCommunity Expert
    Community Expert
    July 18, 2021

     

    @Vadim50B8 wrote:

    If I switch proof set up to CMYK, out of gamut warning is not grayed out and PhotoShop shows out of gamut colors.

     

    That makes sense, as the phrase "out of gamut" refers to a range of colors that cannot be reproduced within the CMYK color space used for commercial printing. 

     

    ~ Jane

      D Fosse
      Community Expert
      D FosseCommunity Expert
      Community Expert
      July 18, 2021

      Yes, but obviously it should work for sRGB too, as long as the file is in a color space bigger than sRGB. Not at my workstation to test now.

       

      All that said, gamut warning is pretty useless because it doesn't tell you how much. Soft proof is much more practically useful, although it does require a wide gamut monitor, preferably covering the document color space in full.

        NB, colourmanagement
        Community Expert
        NB, colourmanagementCommunity Expert
        Community Expert
        June 18, 2024

        @D Fosse On the subject of gamut warning programmer and color guru Steve Upton (of Colorthink fame) commented, a while back

        " It would be wise to clarify one thing.

        The "Gamut Warning" function in Photoshop, it turns out, is a delta-E warning (hence my quotes around Gamut Warning).

        So, if a profile has a significant color shift that is in gamut, it [too] could show up in the "Gamut Warning" function.

         

        I hope this helps
        neil barstow, colourmanagement net - adobe forum volunteer - co-author: 'getting colour right'
        google me "neil barstow colourmanagement" for lots of free articles on colour management
        Help others by clicking "Correct Answer" if the question is answered.
        Found the answer elsewhere? Share it here. "Upvote" is for useful posts.

          c.pfaffenbichler
          Community Expert
          c.pfaffenbichlerCommunity Expert
          Community Expert
          July 18, 2021

          I can’t reprouce the issue. 

          Please post meaningful screenshots to illustrate. 

           

          Edit: Sorry, the last screenshot did not show the Proof Space. 

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