Re: color matching/spaces

[Jeremy S Scharlack <jss267@is9.nyu.edu>]

On Sun, 12 Dec 1999, David Gordon wrote:

> on 12.12.99 16:10, Jeremy S Scharlack wrote:
> 
> > your images may be in your printers colorspace
> Er, how do I tell? There's a drop down menu in the Print Dialog box - if I'm
> working in ColorMatch should I select it here too?
I am only assuming that your image is in the printer space (or some close
approximation of it) based on the fact that you said it printed correctly
and that it displayed dark and contrasty in PS5.5. Your image would not be
"tagged" with your printer profile. The only way to tell is to convert
from your printer file to your working profile and see if it looks normal.
I don't know why the images might be in your printer space (I am not
familiar with PS5LE), but from what you describe they sound like they
might be. Just try the conversion. 

> 
> > PS5.5 you can do a profile to profile conversion from your printer space to
> > your working space (ColorMatch RGB in your case)
> Why do I want to convert from Printer to Working Spaces? I want to work in
> ColorMatch then print what I see. I don't care how the printer sorts this,
> do I?
If the printer is printing correctly (or you want it to) you should be
concerned with how your printer sorts the image. Since you want to work in
ColorMatchRGB and based on what you told me I think your images may be in
your printer space you should convert. This ability to convert color
spaces and control how your printer sorts the images is one of the great
advatages of PS5.5.


> > selecting your printer profile in the print dialogue
> Not sure I see this. Are we going into the Custom or Advanced... settings
> here? I can only see Epson Standard when I select ColorSync. That prints the
> same but a touch warmer.
No, what I meant was the pulldown menu in PS's print dialogue. I am not
sure how ColorSync works into all this since I am on a PC. Just remember
to make sure only one application is doing the conversion (PS in profile
to profile, PS in the print dialogue or ColorSync). In the epson driver
just select photoenhance3 (with no adjustments) or "normal" for the color
adjustment, all in the advanced settings.


> Thanks for yoyr help
> 
> David Gordon
> mail@davidgordon.co.uk

Of course I could be wrong about the fact that your images are in your
printer space. I am just suggesting the profile to profile conversion to
check. If you can somehow find out what profile your images were in
convert from there, though finding this is unlikely. You may even want to
try a couple conversions from other likely spaces (your monitor space,
sRGB, AppleRGB) and see if any give you good results. If they do then
you've found your space and can convert your other images. If you can't
find what space your images are in just use color/tonal correction to make
them look normal. When you print convert to your printer space. I realize
all this color space business is confusing, but it does allow you more
control and consistency.

-- Jeremy Scharlack

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