I e written the python-fu to to that.
If someone else is interested, just mail me.
On Monday 29 November 2004 22:25, Joseph Heled wrote:
> (I think this has been discussed on the list before, but not sure
> What is the best way to achieve the following functionality -
> Given two layers L1 and L2, I want L2 limited by it's distance
> from L1
> Result <- L1 - MIN( MAX(L1 - L2), -20), 20)
> (This expression uses L1/L2 as placeholder for each pixel in all
> RGB channels)
> A. Write a plugin
> B. Write it as a script-fu (not sure if script-fu can iterate on
> pixels, and what is the speed implication). And I hate scheme.
> C. Write it in python fu if I can compile it, but even though it is
> probably not as universally available as scrip-fu. Can I iterate
> over an image in python-fu?
> D. I know I can do it with 5 layers and overlay modes. write this
> as a script-fu. Not elegant and requires loads of memory for large
> Layer Mode
> L1 Grain Merge
> 148 Darken Only
> 108 Lighten Only
> L1 Grain Extract
> L2 Normal
> (148/108 stand for a layer filled with gray pixels
> E. Write a generic framework which allows any kind of expression(s)
> between layer(s) (Only kidding ...)
> F. Anything better?
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