This may sound awkward, but first go to greyscale and then convert back to RGB.
However, for B&W greyscale is perfectly ok, since greyscale is B&W.
If you'ld like to add some colour converting to RGB is necessary!
good luck,
Iwert
2008/4/15, Michael Wong <mialop.wong@xxxxxxxxx>:
>
> Hi, Iwert,
> I have tried the method of convert RGB color to LAB color & have found the
> effect is very good.. But after I delete A & B channels, I fail to switch to
> RGB color as the option is "grey". How do I convert from LAB color to
> RGB/B&W? Thanks.
>
> http://www.michaelphotography.net/others/Picture001.png
>
>
> --
> Michael
>
> On 15/04/2008, iwert bernakiewicz <zuikooh@xxxxxxxxx> wrote:
> >
> >
>
> > Hello Michael,
> >
> > if you scan as RGB, the images will be colour, with a slight sepia cast.
> > To transform these to B&W you can use the desaturate command.
> > Another (interesting) option is to convert from RGB colour to LAB colour.
> > Switch to the channels, end than delete the A & B channels, just
> > keeping the lightness channel. Then you can adjust as you like and
> > convert back to B&W /RGB.
> >
> >
> > Iwert
==============================================
List usage info: http://www.zuikoholic.com
List nannies: olympusadmin@xxxxxxxxxx
==============================================
|
