From: Michal Suchanek <hramrach@...>
Date: 2010-01-18T08:23:58+09:00
Subject: image processing in ruby

Sorry, ignore the previous message.

Looking at available bindings I find

 - ImageScience - thumbnailer only, useless
 - RMagick - no useful functions
 - DevIL - besides supporting some odd image formats just another ImageMagick
 - Ruby-Processing - only drawing, 3D and very basic math (and IDE/GUI
which might be useful) (documentation mentions JRuby)
 - ruby-dcl - documented mostly in Japanese, the English documentation
suggests only drawing, UI, and basic math although the docs claim use
in oceanography and atmosphere research
 - VTK-Ruby - only drawing, 3D, UI, and some basic math
 - HornetsEye - seems to have a few basic functions but does not come
with pre-built docs and I cannot build it
 - Camellia - a few basic functions
 - Ruby/OpenCV - a companion to Camelia (uses same data format) -
quite a few useful funcions
           - edge detection (multiple methods)
           - FFT
           - other dissection methods that might be useful

- ITK - companion to VTK, is supposed to be geared towards image
processing but only Java bindings are available
 - includes edge detection, FFT, MI
 - perhaps could be imported into JRuby - found nice articles on that
    http://www.itk.org/Wiki/VTK/Using_JRuby
    http://depth-first.com/articles/2006/10/24/metaprogramming-with-ruby-mapping-java-packages-onto-ruby-modules

Overall ITK seems about on par or perhaps more complete than OpenCV
which are the best tools I could find.

ITK seems best suited so far because it is fairly complete according
to the docs and ability to use JRuby means I could add stuff that runs
at decent speeds in the Sun JVM without resorting to something like C.

If somebody can suggest a better library I have overlooked I would like to know.

Thanks

Michal

http://seattlerb.rubyforge.org/ImageScience.html
http://rmagick.rubyforge.org/
http://openil.sourceforge.net/
http://github.com/jashkenas/ruby-processing
http://ruby.gfd-dennou.org/products/ruby-dcl/
http://www.gfd-dennou.org/arch/ruby/products/ruby-vtk/
http://camellia.sourceforge.net/index.html
http://rubyforge.org/projects/opencv/
http://www.itk.org/