I wish I could go into more detail. ^_^;  You'll 
laugh if I tell you there's a magic button on the 
controls in my scanning software, but literally, 
there is a button marked with a magic wand. When 
I was scanning something, I got bored and just 
pushed the button to find out what it did. (Good 
thing I don't work at the Pentagon, ne? ^_~)  
Anyhow, it is a button to automatically adjust 
the contrast, tone, and brightness to optimal 
levels.

If it's any help, what it usually did was this: 
In the program you have a master color channel 
but you can also individually adjust the contrast 
of the different primary colors (red, green, 
blue) and what it did was to readjust the 
contrast on those each (usually by increasing the 
contrast). The effect generated can't be 
replicated by simply increasing the contrast on 
the "master" channel, you have to use (well, the 
computer always uses) the individual color 
channels so that it balances the colors with each 
other and you don't wind up with a strong color 
in the douga washing out a lighter one.

I hope that makes some sense. That's as best as I 
can understand it right now - I haven't had time 
to investigate it further. All I really know at 
the moment is that I found that button and 
pushing it suddenly made all my douga scans come 
out right. ^_^

Many Sharp Smiles,
--Drac