Digital BW, The Print

I'm preparing a web submission of monochrome images, and the
submission guidelines require tiff or jpg files with grayscale images
saved with an ICC profile of Dot Gain 20%. I work on a MAC in CS and
have my Photoshop Color Settings set at Working Space = Gray Gamma
2.2. I have a calibrated monitor and print on a 4800 using ABW on
Epson Premium Semi Matte. In my workflow I use a monitor proof setup
(view, proof, custom, etc) with a Dot Gain 20% proof profile. This set
up results in very good screen/printer coordination for me. Here's the
problem I'm dealing with:

The images I want to submit are worked up as described above. The only
way I know to satisfy the submission guidelines is to go back into my
PS Color Settings and change the Working Gray Scale to Dot Gain 20%. I
open the image, disgard the existing embedded profile (GG 2.2) and
then save the image. Now the image ICC imbedded profile is Dot Gain
20% as required. The problem is that the on screen image looks bad,
much darker and more contrast, than the former screen image and print.
This is what the folks I'm submitting the images to will see.

So what am I doing wrong? I don't understand why Dot Gain 20% works as
a proof set up when my Gray Working space is GG 2.2, but when my
working space is changed to DG 20% I get a different on screen result.

By the way, I also have not figured out how to save the proof profile
with my image, so every time I open an image to work on it, I have to
I have to do the proof set up steps.

Help with these questions is greatly appreciated.

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "rgoldman2"
<rgoldman@...> wrote:

CDavid is corect, no need to change your color settings.  Just use the
Image/Mode/Convert Profile to convert (not assign) the image to DG20.

The only thing I would add is to then "Save As" to a different file
name. This will create a new file which you send to the web site, and
leaves your original unchanged.  That way your original file, settings
and workflow are not disturbed.

Regards,
Clayton


Info on black and white digital printing at    
http://www.cjcom.net/digiprnarts.htm

-OK, I think I understand what to do now to get the tiff or jpg files
into the shape they require. Thanks.

> 
> 
> Info on black and white digital printing at    
> http://www.cjcom.net/digiprnarts.htm
>

-Well, I thought I understood, but i seem to be running in place. I re
set my PS color space back to GG 2.2 and opened a new image file. On
screen it looks as usual, a bit dark. I went to image>mode>convert to
profile. That box has GG2.2 as the source profile, and I changed the
working space to DG 20. At that point there was no on screen change
(ie, the image did not look as it does when I choose DD 20 in the soft
proof set up). So I'm not sure what if happening, and I'm not quite
sure what to expect to happen. I want my screen to look like my print
(which it does with soft proof = DD 20), and I want the people who I'm
sending the file to to see it that way also when it is tagged with the
ICC DD 20 profile as they request (they are not printing this file
out, just screening it). I also want, each time I reboot the file to
work on it or print it, for it to look like it does when I view it
through the DD 20 soft proof but without having to go through that
step each time.

I'm sorry to keep throwing this back for help. It bothers me that I
don't quite get this. I've worked really hard on these print files
(there are 40), and I don't want to make a mistake that screws things up.

So thanks again in advance.

Your modified image will appear correctly, as it did
previously with a gamma 2.2 rendering, by changing
your image while working in the Dot Gain 20% profile.

To correct your image you might try the following:

I am assuming that your current file has gamma 2.2
when you view the image on the screen...

I would retrieve the original gamma 2.2 file, whether it
has an assigned gamma 2.2 or an embedded gamma 2.2
in the file, then make a copy of this original image, and
save it with a different name, then close the original
image file.

Reopen the original image file with the gamma 2.2
profile, then open the copy of this image file, and when
it is opened, reassign the current profile of the copied
file to Dot Gain 20% from gamma 2.2 using the
Edit/Assign Profile/ command in your menu bar.

This change of profile from gamma 2.2 to Dot Gain 20%
will make the copied file be lighter in appearance.

You must make the image with the reassigned value of
Dot Gain 20% look like the image on the screen with the
assigned value of gamma 2.2, by changing this file
accordingly with adjustment layers, curves and, or
whatever it might take to completely alter the copied
image, where the copied image mimics the original
image file with the assigned profile of gamma 2.2 on
your screen.  The latest version of CS2 allows you to
work with two different assigned profiles at the same
time.

When you think you accomplished that properly, save
the copied file containing the Dot Gain 20%. You can
imbed the profile and save the file, or simply save the
file with the newly assigned profile.

You should make certain that your Colour Settings Profile
Mismatches are obviously checked in the check box for
Ask When Opening, Ask When Pasting and your Missing
Profiles should also be checked for Ask When Opening.

If you have these boxes checked, you will be alerted
in the future to the fact that a file you are about to
open has a profile assigned to it, and it will become
your choice whether to keep the profile active or turn
it off.

Try that and see if it helps you...

jim k





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