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I asked a smilar question before, but did not get anywhere. I drew an example which can be viewed here: http://www.flickr.com/photos/29009236@N02/4860312546/. we have about 2000 pictures similar to this one, with the particle in different positions and rotations. Is it possible to determine the rotation angle of the particle using matlab? our current solution is a program where we eyeball the rotation, and manually input the scan direction, but for 2000+ pictures, this is not the greatest. If we can determine the angle, we can write a peice for the program that will automatically set the scan direction. 
"Kenneth " <cybeastfalzar99@yahoo.com> wrote in message <i3bsjc$ndp$1@fred.mathworks.com>... 
"Sean " <sean.dewolski@nospamplease.umit.maine.edu> wrote in message <i3c0oh$oa1$1@fred.mathworks.com>... 
"Kenneth " <cybeastfalzar99@yahoo.com> wrote in message <i3c1d4$6ar$1@fred.mathworks.com>... 
Ok, that got messed up, the question is, can i use DCM to determine the rotation of the object? if so, how? 
"Kenneth " <cybeastfalzar99@yahoo.com> wrote in message <i3c9jk$2c3$1@fred.mathworks.com>... 
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