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Digital BW, The Print

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

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Re: levels and curves

2003-10-01 by Mark Hahn

I'm not sure that Adobe does it, but from my tests only a small sub-
sample of an image is all that is really needed for a accurate 
Histogram... the big question is how useful is it really?  I mean, 
are you really not going to apply the specific curve to an image 
which makes it *right* because you don't like the look of the 
histogram?

mark

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "J Michael 
Sullivan" <michael@h...> wrote:
> I'm sure the Adobe dudes figured out a way to optimize it for the 
G5 chip too :(
> 
> No matter, moving Gigabytes of 16bit layers is gonna require one 
kickass machine!
> 
> mjs
> 
> 
> 
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Stephen 
Kobrin" 
> <skobrin@h...> wrote:
> > This question may be rendered moot in Photoshop CS as according 
to 
> > Evening's introduction you can have a "live historgram" running 
while 
> > you use curves.  As I understand it, you will be able to see the 
> > impact of any curves ajustment on the histogram in real time.
> > 
> > The bad news, at least for some of us, is that it looks like CS 
> > requires a Pentium III processor.  I have a II with plenty of 
memory 
> > that works just fine with PS 7.
> > 
> > Steve

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