Re: Maximum color gamut for storage needs!
Re: Maximum color gamut for storage needs!
- Subject: Re: Maximum color gamut for storage needs!
- From: Henrik Holmegaard <email@hidden>
- Date: Wed, 11 Jul 2001 21:21:15 +0200
Andrea de Polo wrote:
So, at this point, I will be very much interested what is your
opinion, knowing >that I represent a historical archive; I need to
preserve my color images for >very good color fidelity and gamut,
but of course at the same time I do not >want to create files and
color space that can become not so easy to >handle/convert/manage to
my end users,
PhotoDisc built its archive by finescanning into CIELab in LinoColor,
and marketing images in an RGB space the size of a monitor space,
TIFFRGB or PhotoDiscl (for LUT). When you don't know how users will
open the image, and you can't give them Lab because few applications
support Lab and fewer still support JPEG Lab, a LUT-based RGB color
conversion space is a sensible choice. Another limitation with
archiving in the profile connection space is that you need to put an
LCh interface on Lab, and there are not many tools that do that
comfortably.
Ultimately, there is no security in RGB workflows. They are more
widespread, that is true, but they are also not stably defined, which
is at least not the case with CIELab. Since Adobe launched the RGB
working space concept in Pshop 5, the core RGB working spaces have
changed definition several times. ColorMatch RGB changed its
colorimetric properties. And what is now Adobe RGB changed at least
once, or maybe twice, I can't remember.
I'm reminded of a bishop who in the 1470s refused to purchase a bible
printed on paper (bibles were also printed on parchment), because as
he said it would not last five centuries -:).