Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@y..., Todd Flashner <tflash@e...> 
wrote:
> 
> 
> >> Is there enough difference between the channels to provide 
useable
> >> information at the print level?
> >> 
> >> As a thought, what if you modified the gamma of each channel 
slightly
> >> to increase the difference between them?
> > 
> > You could put a Curves adjustment layer below your Channel Mixer 
adj. layer.
> > If you mess with each channel's curves independent of one 
another, you can
> > alter the characteristics of the channels before you mix them. 
Not sure I
> > know if there is merit in doing this, but you COULD. ;-)
> 
> 
> Sorry Martin, I see my reply to you was merely redundant to your 
question. I
> think my answer was based upon remembering that in the past I've 
found it
> useful to slap a "false" set of curves on an image to aid in 
creating an
> alpha mask from one of the channels.

I think by doing this you get the illusion that you are adding 
something to the file but in reality you are just pushing arround the 
original scan data. It might be useful for final quality but have to 
try it out.

"False"set of curves for alpha mask?? I'm not following you.

Martin