Alan Tyson wrote:
>
> I don't think I've made myself clear.
>
> I *think* they may be identifying relatively underexposed
> *regions* & boosting the (printed) brightness locally in
> just those areas of the image, giving the same effect as
> wet-chemical-age dodging. Art suggested a means of d
Tony Sleep <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, November 09, 2000 12:07 AM
Subject: Re: filmscanners: Selective LCD masks in colour
printing
> Sounds good to me:) The C21st catches up with unsharp
masking at long last!
>
ection
tool, and I'm hoping they've got a good method for doing it
automatically.
I posted two films to Bonusprint today, to see for myself.
Alan T
- Original Message -
From: photoscientia <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, November 08, 2000
> Is this well-known technology? If it isn't simple contrast
> reduction, and if it's identifying shadow areas accurately,
> I'd like a simulation of this mask as a filter, added to
> Vuescan and other scanning software, to avoid hours of
> labour with selection tools, and selective histogram
> ad
> Is this well-known technology? If it isn't simple contrast
> reduction, and if it's identifying shadow areas accurately,
> I'd like a simulation of this mask as a filter, added to
> Vuescan and other scanning software, to avoid hours of
> labour with selection tools, and selective histogram
> ad
Alan Tyson wrote:
> It says their Agfa Dimax printing machines use a
> computerised LCD mask to reduce local contrast...
>
> "Our Dimax printers overcome this problem by means of a
> liquid crystal digital mask which preferentially selects out
> dark, 'shadowy' areas, and prints them lighter-
It's about time someone else thought that up.. I gave very serious thought to rigging
a LCD projector overlay (you know the ones that sit on the old style projectors) and
using that in the light path above the lense of a collumated light source enlarger to
do shadow masks. Operator would use
