Digital BW, The Print

In a message dated 12/7/06 10:29:00 AM, rgoldman@... writes:


> 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.
> 

You are assigning Dot Gain 20%, not converting to it, so the images are 
(quite appropriately) incorrect. Instead, go to the Edit > Convert to Profile 
command, change your files to Dot Gain 20%, and they will be visually similar, with 
differing numbers, instead of numerically unchanged, with differing visual 
results. 

Thats confusing, so lets see if I can come up with an analogy for this. If 
you had a shirt in size Large Tall, and wanted it to fit someone else, you could 
return it to the store for a Small (convert to profile) or you could tear out 
the tag, and replace it with one that says Small (assign profile). In real 
life no one would expect the latter to work, but our understanding of how 
profiles function is not as concrete, so your error is not as obvious to you as in 
my example...

C. David Tobie
Product Technology Manager
ColorVision Business Unit
Datacolor Inc.
CDTobie@...
www.colorvision.com


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