Digital BW, The Print

Paul, I just assumed he would scan in color, and then desaturate the file, leaving it in RGB. He then wouldn't have to convert to grayscale
and back again.

Jerry




Paul Roark wrote:

> Jerry wrote:
>
> >It doesn't matter WHEN you convert to rgb,
> >the file just has to in that format when you print it.
> >You don't have to convert it first to grayscale!
>
> Jerry, I think this could be a problem in this context.  As I understand it
> the originals are old photos.  They often have some color, including
> yellowing, stains, etc.  As such, that color might affect the variable-tone
> allocation of inks, resulting in some weird tones or color casts.
>
> The recommendation to scan in RGB, even if the ultimate product is a B&W, is
> often to get as much bit-depth as possible.  This recommendation was
> commonly made some time ago when most scanners only had 8-bit B&W.  With
> higher-bit grayscale scanners, I think most would now recommend scanning in
> high bit g/s if the original is strictly a B&W.
>
> However, there may be another reason to scan in RGB for old photos.  The
> color information can help in eliminating the stains.
>
> In any case, I think you should go through a g/s stage to be sure you are
> not carrying color information over to the final printing RGB.
>
> Paul
> http://www.PaulRoark.com
>
>
> 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
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/