HDR and PIL

[bpowah]

I've put together a method (and a script) for rendering (tone mapping)
an arbitrary number of exposures into an HDR-style image.   I really
like the results I'm getting and feel like others could benefit from
it.  I've put together a small write-up here (with the code):

http://bpowah.googlepages.com/hdrandpythonpil

I'd really like to hear comments, suggestions.  Improvements?  Was it
useful?   Should I do anything more with it?