19 Nov
2004
19 Nov
'04
9:04 a.m.
On Fri, 19 Nov 2004, John Allain wrote:
Guess I'm just partial to what NASA does. Throw
down a few reference
colors next to the thing, take a color photograph, and postprocess the
reference colors to what they should be. Although now I see that that is
like the problem of describing right and left to an alien. Where do you
get the reference colors in the first place?
If you're trying to match COLOURs, try:
http://www.robertwhite.co.uk/colour%20management.htm
They have a bunch of stuff about colour management,
including grey cards.
If you're trying to match COLORs,
The THIRD edition (1966) of the "Kodak Color Dataguide"
has both gray scale and color control patches. (along with a
whole bunch of dedicated circular slide rules for things like
color correction with filter pack changes)
lower left of:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=29993&item=3…
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=378&item=690…
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=378&item=691…
not sure what is included in the FOURTH edition:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=67365&item=3…
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=378&item=691…
By the fifth edition (1975), they had dropped the color control
patches, but at least they kept the gray card.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=4685&item=38…
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=629&item=385…
--
Grumpy Ol' Fred cisin(a)xenosoft.com