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Digital BW, The Print

Index last updated: 2026-04-28 22:56 UTC

Message

Re: Convert to RGB caution

2001-08-11 by antonisphoto@yahoo.com

Dan,

it would make sense that a gs-to-RGB would stretch and twist that poor gs 
trying to fit it into whatever profile you have set for RGB (including a possible 
gamma change). Doing channel copies in multichannel mode and then RGB 
should be the more profile-neutral way to go. Great pointer, thanks!

Antonis

--- In DigitalBlackandWhiteThePrint@y..., Dan Culbertson <danculb@b...> 
wrote:

... My solution is to convert from grayscale to multichannel,
> create two copies of the original grayscale channel, then convert from
> multichannel to RGB.  If you are using any process that requires you to
> convert your grayscale file to RGB and apply curves, you may want to try
> this additional conversion step - especially if you have noticed any
> posterization happening in the shadows.

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