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Re: comparing 2 images

Posted by Albert Cardona on Oct 17, 2008; 8:06am
URL: http://imagej.273.s1.nabble.com/comparing-2-images-tp3694719p3694723.html

> Also, the angle of the camera was changed for a few of the pictures, but
> the
> distance always remained the same. Can anyone help guide me in this
> process?


You need to scale the images relative to the common landmarks. Stephan
Saalfeld will demonstrate a plugin on how to do this automatically at the
ImageJ conference this November 6-7 in Luxemburg.

It has to do with feature extraction:

  http://pacific.mpi-cbg.de/wiki/index.php/Feature_Extraction

... and in extracting the transformation matrix from the feature
correspondences, and then registering both images:

  http://pacific.mpi-cbg.de/wiki/index.php/Plugins_Menu#Registration

Hope that helped a bit.

Albert
--
Albert Cardona
http://www.mcdb.ucla.edu/Research/Hartenstein/acardona/