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Mick8888
Inspiring
September 16, 2023
Answered

Need to determine color profile of TIFF files for DCP conversion

  • September 16, 2023
  • 2 replies
  • 4391 views

I have some uncompressed 16 bit tiff files that I need to have converted to a DCP. The company that will be doing the conversion needs to know if the source files are sRGB or Rec709. The files were created in Photoshop, working in the srgb color space. they were then exported from Premiere (which was in the rec709 color space) as uncompressed tiff files. When I load the exported files into Photoshop and a number of other paint programs they look correct, so I'm assuming that their color profile is sRGB, but I want to be sure.

I tried vieing the metadata of the files in Photoshop and Exiftools and it doesn't tell me the color profile, so I suspect that the file doesn't contain this info.

    This topic has been closed for replies.
    Correct answer Mick8888

    Ahh, never knew about this! Unfortunately for me, it simply tells me that the image is untagged RGB. But this is good to know for the future...thanks!

    2 replies

    M
    Mick8888Author
    Inspiring
    September 28, 2023

    I never got to the bottom of this. The company doing the DCP asked me to send them a link to the video on Youtube so that they could see what the color is supposed to look like. They're under contract to the film festival that the film will be in, and they'll be sending the DCP directly to the festival. So I'll find out how it turned out when I see it for the first time at the festival - along with everyone else in the audience!

    W
    Community Expert
    Warren Heaton10841144Community Expert
    Community Expert
    September 28, 2023

    We can check the document profile (the RGB or CMYK color space) for a TIFF image at the lower left of the document window in Photoshop.

     

    Open one of the TIFF images in the image sequence and then change Document Sizes to Document Profile.  It’s the second option in the list.

      M
      Mick8888AuthorCorrect answer
      Inspiring
      September 29, 2023

      Ahh, never knew about this! Unfortunately for me, it simply tells me that the image is untagged RGB. But this is good to know for the future...thanks!

      Ann Bens
      Community Expert
      Ann BensCommunity Expert
      Community Expert
      September 16, 2023

      MediaInfo will tell you the color space (not profile)

        M
        Mick8888Author
        Inspiring
        September 17, 2023

        I checked out MediInfo. Unfortunately it only tells me that the color space is RGB - not the color profile within that space (sRGB, rec709, etc).

        R Neil Haugen
        R Neil Haugen
        Legend
        September 17, 2023

        RGB is a technically a "color model", but most stills people treat this as essentially Adobe RGB, as used in Photoshop, which is a specific color space.

         

        sRGB is another specific space, and is the color space specified in Rec.709 ... which also includes white point and total nit value along with the use of the sRGB color space.

         

        I've also had A-RGB images that were simply listed as "RGB" in MediaInfo. So I think it kinda conflates Adobe or A-RGB with "RGB".

         

        And especially as this is a TIFF file, A-RGB would be my first guess to try anyway.

        Everyone's mileage always varies ...
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