Graphics Programs Reference
In-Depth Information
Fig. 9-2-8
Select the
Assign Profile
command
and select the radio button
Don't Color Manage This
Document
.
Don't Color Mange This Document
and make sure the
Preview
check box is on. Notice that the color appearance
changes but the color numbers seen in the info palette do not
change. This illustrates that assigning different profiles to a
document can change the color appearance but not the color
values.
If you wish, you can use the pop-up menu in the
Assign
Profile
command to pick different profiles and the color
appearance will change based on the profile selected. Photoshop
is being told that the existing numbers have a different meaning
or origin each time you pick a different profile. That produces a
different color appearance on the display. When done, click
OK
or
Cancel
and close both documents. When asked to save, click
Don't Save
or just hold down the
D
key. There is no reason to
save the duplicate document used for the tutorial.
Within an ICC-savvy application like Photoshop, different numbers can
have the same color appearance whereas identical numbers can have
different color appearances. This illustrates how numbers alone must
have an embedded profile in order to produce the right on-screen color
appearance.
Tutorial #3: Rendering Intents
Picking the appropriate rendering intent when converting images can be
as simple as viewing an image and toggling different rendering intents.
This can be done either with the
Convert to Profile
command or by
toggling different rendering intents in the
Proof Setup
, either those
saved or in the custom proof setup dialog. This tutorial will illustrate how
the rendering intents actually are affecting your images, although I still
think the right rendering intent is the one you prefer based on the soft
proof and the image being viewed. It is still interesting to see what the
various intents can do to both real and synthetic images, so let's look
at both.
1.
Open the
GrangerRainbow.tif
image you made in Tutorial #6.*
Make sure this image is being displayed at 100% zoom ratio for
*There is a copy on the topics' CD.
