Tutorials - Color Management for Photographers - page 337

Fig. 9-5-5 The Embedded
Profile Mismatch dialog
with the default radio
button set to Discard the
embedded profile (don't
color manage) .
not Adobe RGB (1998). This illustrates how dangerous the off policy can
be! If this document is saved as untagged and given to another user, that
user will never know the true meaning of the data in this document
(sRGB). Close the Dog_in_Bowl.tif document and if asked to save, click
Don't Save or just hold down the D key.
In these three cases, anytime Dog_in_Bowl.tif was opened, an
Embedded Profile Mismatch dialog appeared. Photoshop is telling us
that the document is in an RGB space that doesn't match what was set
in the Color Settings. However, we were able to open the document with
no alterations (sRGB) or open the document and convert into the RGB
working space [Adobe RGB (1998)]. It is for this reason I like to describe
the currently set RGB working space in our Color Settings [Adobe RGB
(1998) in this case] as the preferred RGB working space. We are not forced
to bring a document into this space if there is no reason to do so. In the
case of the Dog_in_Bowl.tif document, there was no benefit to con-
verting the document. For some users who might be getting documents
from many other users, it might make sense to leave the document in
the space in which it is supplied. The Preserve policy is ideal for this
kind of pipeline. We use the Preserve policy when we want to honor
the color space the document had originally tagged.
As for the Convert to Working space option, we can allow this
conversion, but we should ask if there a compelling reason to do this. In
some cases there certainly is! Imagine you are a web designer who is
getting many documents from users and you want to be sure that all such
documents end up in sRGB. Having a policy set to Covert to Working
space and then setting the preferred working space to sRGB would allow
this user to easily convert all documents into sRGB. Therefore, we would
set the RGB working space to sRGB, and set the policy to convert upon
opening these files. However, as you will soon see, we can automate this
process if we are careful.