Digital BW, The Print

> I do not understand how one can separate 'color' information and
> 'detail'?
>  They are one and the same. 

The difference is in the chrominance and luminance. You get 
far greater critical information from the luminance 
channel than from the chrominance channels. That's the 
reason they use 2 green receptors for every red and 
blue.  You can have a sharp picture with good luminance 
detail but look crappy from color smearing in the chroma 
channels.

it's also another good reason for only apply the unsharp 
mask to the luminance channel. 

Greg