Hi,
I'm using the masking feature a lot and I'm abusing the curve tool
to apply some local exposure corrections.
For some time I'm wandering that it should be possible to do some
automatic curve fitting on the edge between low and high intensity
and thus minimize the need for placing control points by hand. For
example it should be possible to place the curve at the line where
some mountains (or the sea) meat the sky.
Does somebody know of a tool that can be used for the job?
I've tried the edge detection filters of gimp and they are pretty
successful at finding the edge between a mountain and the sky.
But finishing the mask by hand is a bit tedious.
If there is no ready made tool, I'd be happy if someone can
suggest a paper about an algorithm or a method that can be
used as a base for an implementation of such tool (or even
module).
My desired solution for this problem looks like:
1. the user draws a rough curve
2. then pushes a button somewhere and the tool makes the
curve close to perfect, so he/she can take advantage of the
high dynamic range of modern cameras in just a second.
Best regards,
Teodor
p.s. does dt support loading a mask from a bitmap?
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