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PS7 - Grayscale adopts wrong profile - Adobe Photoshop 7, CS, CS2 & CS3

If I have a ICC colorspace tagged RGB colour image and select a single channel (R,G or B) and then select Mode -> Grayscale I'm asked if I want to "Discard other channels?" to which I answer "yes". The image should then be a grayscale image, right? Not quite... If I save the image it still embeds the original RGB colorspace tag (sRgb, Adobe RGB, or whatever..). When I later go to reopen the image I'm informed that "The embedded ICC profile cannot be used because the ICC profile is invalid. Ignoring the profile." If, on the other hand, I ...

  1. #1

    Default PS7 - Grayscale adopts wrong profile

    If I have a ICC colorspace tagged RGB colour image and select a single channel (R,G or B) and then select Mode -> Grayscale I'm asked if I want to "Discard other channels?" to which I answer "yes".

    The image should then be a grayscale image, right? Not quite... If I save the image it still embeds the original RGB colorspace tag (sRgb, Adobe RGB, or whatever..).

    When I later go to reopen the image I'm informed that "The embedded ICC profile cannot be used because the ICC profile is invalid. Ignoring the profile."

    If, on the other hand, I delete the 2 unused colour channels before selecting Mode -> Grayscale the file is then recognized as being a grayscale image. when I proceed to save it and the appropriate Grayscale profile is embedded.

    Why would this be?

    Thanks

    Russell Proulx
    Montreal
    Russell Proulx Guest

  2. #2

    Default Re: PS7 - Grayscale adopts wrong profile

    That would have to be a bug in PS 7....
    Chris Cox Guest

  3. #3

    Default Re: PS7 - Grayscale adopts wrong profile

    Wow - that one hasn't been reported or fixed yet.

    So, I'm fixing it now.
    Chris Cox Guest

  4. #4

    Default Re: PS7 - Grayscale adopts wrong profile

    Glad to hear it's a bug and not a feature :-)

    I'll let you know if I find any more.

    Russell
    Russell Proulx Guest

  5. #5

    Default Re: PS7 - Grayscale adopts wrong profile

    Will that fix be in the 8.0 upgrade? How soon will it be ready?
    Eric Purkalitis Guest

  6. #6

    Default Re: PS7 - Grayscale adopts wrong profile

    Eric - I cannot comment on unannounced products or versions of products.
    Chris Cox Guest

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