Re: On the use of wide-gamut RGB working spaces
Re: On the use of wide-gamut RGB working spaces
- Subject: Re: On the use of wide-gamut RGB working spaces
- From: Mike Strickler <email@hidden>
- Date: Wed, 8 Oct 2008 10:01:02 -0700
As someone who has scanned, edited, converted, and archived a fair
number of images over the years I'll just throw out some random
observations on this matter.
1. Ultra-wide spaces like DonRGB, Ektaspace, and ProPhoto RGB are
justified for archiving when the original contains colors beyond the
limits of the usual working spaces such as Adobe RGB and sRGB, but
not justified otherwise.
2. Ultra-wide spaces are harder to do subtle edits in and should only
be used with 16-bit files.
3. Use the smallest color space needed to encompass all the colors in
the original with a little room to spare--it makes editing easier.
4. The working space should be not just perceptually linear but also
gray balanced: equal amounts of R, G, and B always make neutral gray--
this is true of the spaces mentioned above but not true of scanner
color spaces--always convert scans to a proper working space before
further editing.
5. There's nothing wrong with sRGB or special about Adobe RGB, but
customers still associated the latter with "quality" even when
there's no need for its larger gamut (which is principally in the
greens.) Nonetheless, I hesitate to convert form the former to the
latter; it's illogical and gains nothing.
6. The perceived need for ultra-wide color spaces is sometimes
(though not always) driven by poor judgment that demands artificial,
oversaturated color.
Mike Strickler
MSP Graphic Services
423 Aaron St. Suite E
Cotati, CA 94931
707.664.1628
email@hidden
www.mspgraphics.com
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