Re: Matchlock Cyan Skies

[Dan Culbertson <danculb@concentric.net>]

I wrote:
snip 
> If it is indeed a
> garden variety hue compression issue then try converting the image to the
> profile in Photoshop 6 ("convert to profile" command) and then adjust the
> hue-saturation of the area in question to bring it back into a color that
> you printer can print and you like better.  Or maybe try editing the profile
> so that the blue shifts toward the other direction -- but that may mean you
> will have to keep multiple versions of your profile for each image type
> (portrait, landscape, etc.).

Oops - just reread the above - Didn't mean to imply one should do that
"convert to profile" thing on a regular basis - do that as an experiment.
On a regular basis it would usually be more appropriate to set up the
Photoshop 6 RGB preview using your profile and edit the original image RGB
file (unconverted) with a layer to get back into a color region you like as
witnessed through the preview.  This editing via preview prevents archiving
the file in a small gamut printer space which is what would happen if you
did convert to profile then saved the edits.  The only reason you may want
to convert to profile and edit would be to add the very few colors (like
pure Epson cyan) that are out of gamut of the Adobe RGB edit space.

It is also nice to *experiment* with the "convert to profile" method since
the info palette will then show you the printer's real RGB space numbers and
you may get a bit of a better understanding as to what the profile is doing.
It would be great if Photoshop 6 let you set the info palette to two RGB
settings (pre and post profile) so you could see them side by side like you
can see RGB and CMYK numbers side by side.  Visually you can do that with
two views, one set to preview in profiled printer RGB space and one set to
preview in the original Adobe RGB edit space.  But I like to see how the
numbers change from space to space since I don't always trust my eyes these
days so I think a dual RGB info palette could be helpful - especially for
those printer colors that are beyond the range of my monitor's RGB space but
which can still be edited in Adobe RGB space.  Then again I experiment with
some mighty strange inksets so what I hanker for may not be on most people's
wish list.

Dan

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