Dale
2014-02-23 02:03:05 UTC
I have been been reading on
http://www.color.org (ICC)
http://en.wikipedia.org/wiki/SRGB
http://en.wikipedia.org/wiki/CIECAM
the adoption of sRGB, although a linear transform to CIE, introduces a
device paradigm as opposed to a device independent paradigm, and has
taken ICC far astray from its original purpose, not totally bad though
there also is a current focus on attractive pictures versus accurate
pictures, obtain by scene balance algorithms
sRGB and evolutions from it and attractive pictures will overtake
accurate pictures in consumer markets, professional portrait markets,
newspapers, motion picture markets and television markets, people in
these markets prefer to look better than they actually do, a concept in
art for a long time
but you could get the choice of accurate versus attractive, if an RGB
based on the eye (CIE) rather than an RGB based on video like sRGB
sRGB does not allow for the choice of accurate outside of video
in fact sRGB's paradigm has prevented color/appearance management to
enter digital photography as admitted by the ICC
advancements in appearance like scene balance algorithms might aid in
accurate appearance versus accurate color (CIECAM)
http://en.wikipedia.org/wiki/CIECAM
commercial photography and commercial prepress markets require a degree
of accuracy in appearance,, some other markets fall into this category
that I may or may not know, as for what I know digital photography has
not taken over fully here, even after 20-30 years
the hardware and software of having an actual CIE RGB only requires a
gamma lookup tables and Luv or Lxy matrix conversion from video RGB's,
matrix conversions and one dimensional lookup tables are supported by
ICC (this whole post has a different flavor if Kodak's scanner
intellectual property from the Eikonix acquisition in this regard
applies to cameras too)
why not take the little effort of a matrix and lookup tables that gives
you the option of accurate AND attractive, even video is changing, sRGB
is really geared to CRT display, there is LCD now, there is plasma,
there is LED, there is OLED, digital projectors, and maybe more I do not
know
also, the same scene balance algorithms that give you attractive
pictures, can be used for accurate pictures, for instance white point
from a digital photo can be used as its relative colorimetry in
appearance accurate workflows
perhaps we have been having a war in this industry since I was involved
about 20 years ago, I remember when sRGB was first suggested for an ICC
standard and said it would result in no ICC profiles not being used,
this is what has happened, the consumer video industry has left the
professional markets behind, typical consumer maneuvering at Kodak R&D
when I was there, I am not that familiar with ProPhotoRGB but I will
study it, it probably complements sRGB workflows
someone, perhaps ICC, ought to do a research project of use-cases in
imaging markets, and see where attractive color is preferred over
accurate color, and then a central color/appearance paradigm that
complements as many markets as possible, not just consumer
http://www.color.org (ICC)
http://en.wikipedia.org/wiki/SRGB
http://en.wikipedia.org/wiki/CIECAM
the adoption of sRGB, although a linear transform to CIE, introduces a
device paradigm as opposed to a device independent paradigm, and has
taken ICC far astray from its original purpose, not totally bad though
there also is a current focus on attractive pictures versus accurate
pictures, obtain by scene balance algorithms
sRGB and evolutions from it and attractive pictures will overtake
accurate pictures in consumer markets, professional portrait markets,
newspapers, motion picture markets and television markets, people in
these markets prefer to look better than they actually do, a concept in
art for a long time
but you could get the choice of accurate versus attractive, if an RGB
based on the eye (CIE) rather than an RGB based on video like sRGB
sRGB does not allow for the choice of accurate outside of video
in fact sRGB's paradigm has prevented color/appearance management to
enter digital photography as admitted by the ICC
advancements in appearance like scene balance algorithms might aid in
accurate appearance versus accurate color (CIECAM)
http://en.wikipedia.org/wiki/CIECAM
commercial photography and commercial prepress markets require a degree
of accuracy in appearance,, some other markets fall into this category
that I may or may not know, as for what I know digital photography has
not taken over fully here, even after 20-30 years
the hardware and software of having an actual CIE RGB only requires a
gamma lookup tables and Luv or Lxy matrix conversion from video RGB's,
matrix conversions and one dimensional lookup tables are supported by
ICC (this whole post has a different flavor if Kodak's scanner
intellectual property from the Eikonix acquisition in this regard
applies to cameras too)
why not take the little effort of a matrix and lookup tables that gives
you the option of accurate AND attractive, even video is changing, sRGB
is really geared to CRT display, there is LCD now, there is plasma,
there is LED, there is OLED, digital projectors, and maybe more I do not
know
also, the same scene balance algorithms that give you attractive
pictures, can be used for accurate pictures, for instance white point
from a digital photo can be used as its relative colorimetry in
appearance accurate workflows
perhaps we have been having a war in this industry since I was involved
about 20 years ago, I remember when sRGB was first suggested for an ICC
standard and said it would result in no ICC profiles not being used,
this is what has happened, the consumer video industry has left the
professional markets behind, typical consumer maneuvering at Kodak R&D
when I was there, I am not that familiar with ProPhotoRGB but I will
study it, it probably complements sRGB workflows
someone, perhaps ICC, ought to do a research project of use-cases in
imaging markets, and see where attractive color is preferred over
accurate color, and then a central color/appearance paradigm that
complements as many markets as possible, not just consumer
--
Dale
Dale