Claus Cyrny wrote:
> Owen wrote:
>>> Or do I need to code a plugin, and if so, what exactly is the operation 
>>> to be done
>>> (in terms of RGB) ?
>> Image->Layers->Colors->Invert ?
> Actually it's not that easy, because the film contains a mask (yellow &
> red), which has to be filtered out.
> Claus
And different films have different masks.  Kodak is different from Fuji.

Like others have said, you were probably better off to have done this
while scanning using either xsane or vuescan (not open source, but a
pretty good scanner prog).  I'm surprised whatever s/w you were using
didn't give you the option when you told it you were scanning color negs. 

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