Being endlessly interested in contrast taming, I just tried this but
obviously I am missing something because I can't get it to work. I
certainly don't understand how it works, mostly because I don't know what
"screen" does :( Is the technique assuming the dark or light image on top,
or doesn't it matter?
It does remind me though of the other semi-automatic way of improving high
contrast images which works quite well, although if overused gives some
strange effects on the light-dark transitions and at the edge of image.
Contrast masking...
- Image needs to be in 8-bit which is a shame.
- duplicate it into a second layer
- desaturate top layer and invert (make it a negative of itself)
- select OVERLAY as mode
- gaussian blur this top layer to 20-70pixels until you get the best effect
- reduce the effect if necessary by reducing transparency of top layer
Julian
At 12:07 08/01/02, you wrote:
>I apologize if I'm getting into some else's discussion, but I suggest the
>following:
>
>1. make the top layer active and choose blend mode screen
>2. move the opacity to 30-40 %
>3. you can make further adjustments on adjustment layers added to each of
>the two scans.
>I'm assuming you have the two layers registered, this can be checked by
>using blend mode difference temporarily (the image should go black).
>
>Bob Wright
>
>----- Original Message -----
>From: "S Schwartz" <snsok@swbell.net>
>To: <rew@impulse.net>
>Sent: Monday, January 07, 2002 2:45 PM
>Subject: [filmscanners] RE: Tips needed on difficult scan
>
>
>Maris,
>
>Having layered two such images, I am not clear how to blend them. I have a
>similar situation in which shadow detail is lost in many small regions of
>the image.
>
>I tried layering the dark on the light and erasing parts of the dark layer
>where I wanted the shadow detail to show through. Is that what you meant?
>
>Stan
>
>-----Original Message-----
>From: filmscanners_owner@halftone.co.uk
>[mailto:filmscanners_owner@halftone.co.uk]On Behalf Of
>mlidaka@ameritech.net
>Sent: Monday, January 07, 2002 9:58 AM
>To: snsok@swbell.net
>Subject: [filmscanners] Re: Tips needed on difficult scan
>
>
>Try making 2 scans - one optimized for the highlights and one for the
>dark area, and then layer them.
>
>Maris
>
>On Sat, 05 Jan 2002 00:01:17 -0800 "Ken Durling" wrote:
> >
> >
> >
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