> Gimp has this nice layers model which can be used for
> generic image data. Whereas the Alpha layer has a
> specific meaning which is distinct from dust removal
> operations.
Please don't keep confusing layers with channels. They're different.
As Oliver said, what I wanted is an auxillary _channel_ -- not least
because all the dust-removal tech will probably work in a way which
makes sense done that way. Andreas Rick seems sure that it can be done
"on the fly", but I'm not so keen especially when he talks about 80Mb
of memory -- I doubt my 486 scanner machine will be adequate :(
It's actually very easy to make this change in XSane, and I'll try to
get on the case if Oliver doesn't beat me to it. There's an associated
change to be made in the Gimp plug-in too.
First though, I need to get a working setup for the LS-30 w/Autofocus
Nick.
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