Re: Profile: How to identify

["Gary L. Hunt" <glh@srv.net>]

At 06:51 PM 2/24/2000 -0800, michael *À* wrote:
>I just did a Profile to Profile conversion, from RGB to ColorMatchRGB to test Jon Cone's 
>assertion the latter was more closely aligned with the CMYK printing gamut.  Then, to check, 
>I took the converted image and repeated the process.  Lo and behold, Photoshop asked me 
>if I wanted to convert from RGB when the image had already converted to ColorMatchRGB. 
>
>Sooooo, is there a way to determine the current profile attached to an image?   

There are evidently utilities that will let you do this, or you can look in
the file with a hex editor and find the profile name.  Or you can change
your Photoshop RGB working space to something that won't match
the file, try to open it, and let the Photoshop Profile Mismatch dialog
tell you what it is (as long as PS is set to do this on a mismatch.)
But if you are doing multiple conversions on a file, be careful you do not
fall into the Photoshop Profile-to-Profile conversion trap.  You can
convert an image from anything to anything within PS, but as far as
PS is concerned, its embedded profile is always your RGB working
space after you load the file.  If you are editing in Adobe RGB, and
you convert an image to ColorMatch RGB, the file will be tagged as
Adobe RGB if you save it.  The tag corresponds to the working space,
and it has nothing to do with any conversions you make to the file (at
least within RGB spaces--presumably if you convert it to CMYK, it
will be tagged with a CMYK space tag.)

Gary Hunt <glh@srv.net>

-
Please turn off HTML mail features. Keep quoted material short. Use
accurate subject lines. http://www.leben.com/lists for instructions.