Graphics Programs Reference
In-Depth Information
Simulate Black Ink. For the following discussion, I will use the newer
names of these check boxes; however, the functionality is identical.
When the Simulate Paper Color check box is applied, Photoshop attempts
to simulate the white of the paper, not the brightest white the actual
display is capable of producing. Simulate Paper Color produces the absolute
colorimetric rending intent for the display preview. Checking Simulate Black
Ink turns off Black Point Compensation in the simulation-to-monitor trans-
form, which is normally using a relative colorimetric rendering intent to
the display. The result is a somewhat weaker and muddy black, which
more accurately soft-proofs the print process. Since the ICC profile has the
information about the blackest black and whitest white of the output
device, this is being utilized in the soft proof using these options.
When Simulate Paper White is selected, Photoshop is using an absolute
colorimetric rendering intent without Black Point Compensation to soft-
proof the image to the display. You will notice that Simulate Paper White
always toggles the Simulate Black Ink check box off. This is because Black
Point Compensation isn't possible with the absolute colorimetric intent.
Consequently, you can select just the Black Ink check box, which turns
on Black Point Compensation. In a nutshell, here are the three options
for soft-proofing based upon the two check boxes (see Fig. 2-21):
Simulate Paper Color and Simulate Black Ink Off: This produces the
relative colorimetric intent with Black Point Compensation.
Simulate Black Ink : This produces the relative colorimetric intent
without Black Point Compensation.
Simulate Paper Color : This produces the absolute colorimetric intent
(no Black Point Compensation).
The Simulate Paper Color check box is producing a soft proof that produces
a much more accurate match to the printed piece viewed nearby on a
D50 light box. The Simulate Black Ink soft proof is more accurately pre-
viewing how dense the black (ink, toner, etc.) on paper will appear. The
bad news is that when a user turns on Simulate Paper Color , they see their
nice snappy image on-screen get muddy and appear flat in contrast. The
process of seeing the preview change before your eyes is sobering. It can
be so dramatic that you should not view this conversion taking place.
The best way to avoid this is to select a custom-saved soft proof with the
Simulate Paper Color option and turn your head away as the preview
updates. By not viewing the original preview for a few seconds, your eyes
will readapt to the new soft proof, which should be more accurate.
An important consideration when using Simulate Paper Color is to
ensure that no other user interface items, such as palettes, are seen on-
screen when viewing the document. These items do not undergo the
paper white simulation so their whites are as bright as the display can
produce. Your eye will adapt to the brightest white of the monitor white
rather than the simulated white you see when the Simulate Paper Color
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