[Openicc] Extra metadata keys for review
almccart at lexmark.com
Mon May 7 15:12:13 PDT 2012
There can be differences between a ROMM RGB profile and a ProPhotoRGB
profile. E.g., a ROMM profile should be a lut profile. The ProPhoto
profile I have seen is a matrix profile.
This highlights the fact that that two profiles based on the same standard
color space may behave differently the same, e.g., have a different
Ann L McCarthy
Imaging Systems Architect
Lexmark International, Inc.
On Mon, May 7, 2012 at 5:39 PM, Chris Murphy <lists at colorremedies.com>wrote:
> On May 6, 2012, at 1:45 AM, Richard Hughes wrote:
> > STANDARD_space A standard space, where "srgb" -> sRGB;
> "adobe-rgb" ->
> > AdobeRGB; "prophoto-rgb" -> ProPhotoRGB
> ProPhotoRGB is actually a renamed version of ROMM RGB. So it makes me
> wonder if that should be used as the base, with ProPhoto RGB as the alias,
> if aliasing can be supported.
> Likewise sRGB is derived from ITU-R BT.709 (or Rec. 709).
> Likewise "adobe rgb" does not exist, it's specifically "Adobe RGB (1998)"
> and for that matter I'd quibble with wikipedia for calling it "Adobe RGB
> color space" which is not strictly correct either.
> Chris Murphy
> openicc mailing list
> openicc at lists.freedesktop.org
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