Re: [colorvision_group] PrintFix Pro and B&W Printing Follow Up
2007-01-25 by CDTobie@aol.com
In a message dated 1/24/07 4:54:47 PM, mkraus1044@... writes:
1. If I have a file of a B&W image and it is in grayscale, how do I
use it with the new profile I just made? Do I need to convert it to
RGB first?
No, you can print a grayscale image to the gray-augmented RGB profile, and get a neutral grayscale print. Or, you can tint a special version of the profile, and print that grayscale image to get sepia, selenium, or whatever tint or crosstint you want. The only time you actually need to convert that grayscale image to RGB, is if you wish to tint, crosstint, colorize or otherwise add color data to the image itself. This can offer similar results to the tinted profile, or other effects, such as a portion of the image in one color, and a different portion in another, or in B&W. This is something that the profile can't do, as the profile treats all pixels of a given density equally, while you can treat them any way you want if you convert to RGB.
2. Now that I have made a profile with the 225 target patch plus the
Extended Gray patches,I have 2 profiles. The original one which
works fine with color. And a second which combines the original and
the extended gray. How do you suggest I use these? Do I use the
original for color and the combined one for B&W?
If you prefer the results from the original profile for printing color, feel free to use it. But I can't see why that would be the case, the augmented profile should offer improved neutrals even in color prints. In fact, I usually don't even bother to build the 225 patch-only profile, I go straight to the augmented version without ever building an "unaugmented" one... I can see why users would want to build both for initial process, comparison, and testing, but its not really necessary for real world use.
C. David Tobie
Product Technology Manager
ColorVision Business Unit
Datacolor Inc.
CDTobie@...
www.colorvision.com