Digital BW, The Print

Jim

It's certainly over my head. I'd say take it to the CM gurus at:

http://lists.apple.com/mailman/listinfo/colorsync-users

(to join the Colorsync list)

Don't be put off by it being an Apple list, it's for all color management,
which conversions certainly fall under.

Todd

> Todd,
> 
> The complete color settings advanced  dialouge is IDENtical for both
> ver 6 and ver 7 when I did the histogram test. I used Adobe ace
> relative colometric, with black point and dither boxes checked. I
> can't try Apple CMM, I don't seem to have it as an option on Windows,
> all I could try is Microsoft ICM- I figured it would just buy me more
> trouble knowing how great ms is at color matching<g>.
> 
> The workflow, selections in all dialog boxes, presets, order of
> workflow, file, curve loaded, etc etc...was done identically for both
> ver 6 and 7 AFAIK. And the same done mutiple times through the
> workflow. But please, I welcome anyone checking me out on this so that
> I can resolve my posterization problem.
> 
> The steps I did after making sure that color settings ("pshop 5
> defaults" settings), etc were identical:
> 1) Open file up, disgarding mismatched profile. Image is labelled
> "untagged grey". I could assign profile of gamma 2.2 to it, but it
> just gives me the same  histogram results.
> 
> 2) convert to rgb mode. Dialog asks if I wantt to merge layers. I
> choose "yes". sRGB appears as the new color space for file.
> 
> 3) Add adjust curves layer- in curves dialog I load Paul's mw 2880
> curve for PC. I also checked the normal 1440 (mw for PC 1280) curve
> that most people use  and also get a change from 6 to 7.
> 
> 4) select background layer and view histogram. Note down mean, SD and
> median.
> 
> 5) close down pshop and open up the other version and repeat steps.
> There is a slight discrepancy in all three values, but most notable in
> the median.
> Jim H.  
> 
> 
> 
> 
> 
> Please visit the Group Homepage to check the Files, Bookmarks, Polls and other
> resources as they are often being updated. The page is at:
> 
> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint
> 
> Please follow these basic guidelines:
> - Include your full name with your message.
> - Include the address of your website, if you have one.
> - As threads develop, trim off excess portions of earlier messages to keep
> them short.
> - As the topic of a thread changes remember to change the subject header.
> - Good manners are required at all time. No personal attacks or
> "flames."
> - Complete your Yahoo profile.
> - Before posting a question, search the message archives and the various
> resources on the homepage.
> 
> 
> 
> 
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
> 
>