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Digital BW, The Print

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Message

[Digital BW] Re: B+W Scans from RGB Scanners

2009-01-10 by Roy Harrington

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Eric Neilsen" <e.neilsen2@...> 
wrote:
>
...
>  
> 
> And Roy, Do you know for what version of PS your information pertains to?
> All? 

Hi Eric,

Color Management has been used for Photoshop Mode conversions for quite
a while.  At least all the CS versions (CS,CS2,CS3,CS4) do it that way.
It's also worth mentioning that the Info Palette also uses this.  If you display say
RGB values when you have a grayscale file, you are seeing the ICC converted
values based on the RGB working space.  In other words since K values are
displayed in values 0-100 you don't see the full 8 bits that are really there.
Often people will look at the RGB values 0-255. But they aren't the files values
they are the converted values from K to RGB -- matching Lab Luminosity.

Roy

>   
> 
> Personal testing is still the order of the day. 
> 

Yes, testing is always worthwhile.  It's a great way to learn what's going on
"under the hood" -- if you are curious about it.

R

>  
>  
> 
> Eric Neilsen Photography
> 
> 4101 Commerce Street
> 
> Suite 9
> 
> Dallas, TX 75226
> 
> http://e.neilsen.home.att.net
> 
> http://ericneilsenphotography.com
> 
> Skype ejprinter
> 
> From: DigitalBlackandWhiteThePrint@yahoogroups.com
> [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf Of br80906
> Sent: Friday, January 09, 2009 9:59 PM
> To: DigitalBlackandWhiteThePrint@yahoogroups.com
> Subject: [Digital BW] Re: B+W Scans from RGB Scanners
> 
>  
> 
> Please check out this page...it helped me a ton on b/w conversion.
> You need to experiment w/your scanner, but the end result will give
> you what you are looking for...
> 
> http://www.butzi.net/articles/colorscan.htm
> 
>  
> 
> 
> 
> [Non-text portions of this message have been removed]
>

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