Re: Extensible Persistent Properties for ImageJ Images

Posted by Michael P Ellis on
URL: http://imagej.273.s1.nabble.com/Extensible-Persistent-Properties-for-ImageJ-Images-tp5023228p5023243.html

This morning whilst walking the dog around the bay I stopped to stare into the sea, as I often do. It's so hypnotically beautiful. Here it is: http://ellisnet.uk/Rants/Water1080p.mov

Then I started to wonder. Is there an image processor that can remove the distorting effect of the water such that it produces an image of the sea bed as if the water were not there?

Has this been done?

The distortion has some randomness to it, but it's not totally random.

I'm thinking that at any given instance t, every point source p(x, y) on the seabed undergoes a geometrical affine transform, but there are probably limits to what these transforms might be

- translation looks to be the most significant
- magnification - less so?
- rotation - none?
- skew ?

Also whilst the ripples on the surface of the water don't break I assume:

 - The transformational effects of neighbouring points are similar.

 - The transformation effects for temporal neighbours are similar.
 
Also there seems the lens affect of a waves produce a pattern of sharp bright edges on the seabed floor, but perhaps by virtue of being bright they could be threesholded out before feeding into an algoroithm to reverese the optical deformation.
 
I have no idea if this could be of any use for anything.

I have noo idea how to solved it.

But it struck me as interesting and would remarkable cool to see.

Happy Easter all or Χριστός Ανέστη (for my Greek friends)
Michael Ellis (Managing Director)
Digital Scientific UK Ltd.
http://www.dsuk.biz <http://www.dsuk.biz/>
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tel: [phone]

The Commercial Centre
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