Ok, so I had a go at seeing what I could do at restoring the image using
the tools Bruce linked to.
http://www.flickr.com/photos/jb_sessoms/5762816920/lightbox/
I apologize that the only place I have to display the image is on
Flickr, and I won't leave it up there more than a couple of days.
There's still a lot of texture left in the image, but it does seem to
have pulled out a lot of detail that I couldn't see before.
But I thought it might be interesting to see what can be done by someone
completely unfamiliar with these tools.
I had some minor problems understanding the ImageMagick site. Not their
fault, I'm just not that good with math, and especially when all I have
is just a description of what the math is supposed to be. 8-D
Still, I downloaded and installed one of the FFT filter plugins for
Photoshop and gave it a go.
I played with it for a couple of hours. Time well spent, since I learned
something that might make a buck or two. If anyone is really interested
in the gory details, just say so & I'll either post them or send them to
you off list whichever you want.
From: Bruce Walker
Dave, here are some references:
Fourier Transforms -- ImageMagick examples
http://www.imagemagick.org/Usage/fourier/
Fred's ImageMagick Scripts: FFTFilter
http://www.fmwconcepts.com/imagemagick/fftfilter/index.php
Be warned that installing ImageMagick is not for the faint of heart, and
this is largely command-line stuff (ie you have to be comfortable with
issuing DOS-like commands in Terminal.app).
There are a couple of FFT plugins for Photoshop (and Elements), but
unfortunately *only* for Windows. And they are a moving target; the
places where they are hosted keep disappearing. See this article:
http://www.curvemeister.com/forum/index.php?topic=62.msg13586#msg13586
... this tutorial:
http://www.skeller.ch/ps/fft_action.php
... and this:
http://www.3d4x.ch/Swift's_Reality/FFT_Photoshop_plugin_by_Alex_Chirokov/16,35
Cheers!
-bmw
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