<DIV>Hi,</DIV>
<DIV>I am trying to write a mutual information registration code (Viola Wells) <BR>that implements both centered rotation and translation. Therefore, I tried to combine<BR>the examples ImageRegistration2.cxx (mutual information using translation transform) and ImageRegistration5.cxx (centeredrigid2D transform using MeanSquaresImageToImageMetric). However, when I run my code to register the given images<BR>BrainProtonDensitySliceBorder20.png and BrainProtonDensitySliceR10X13Y17.png, the angle <BR>values are extremely high (-3007.19) and I couldn't find where the problem is. </DIV>
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<DIV>Another question is, if I understood correctly, in these examples, we are taking<BR>the final registration parameters as the best values. However, the last metric value<BR>is not necessarily the best metric value, ie. we are not looking for the best metric <BR>that maximizes the mutual information but only taking the last one when we do "finalTransform->SetParameters( finalParameters )". Please correct me if I misunderstood this part or I would appreciate if you could explain why it was not done as such or how I can do it.</DIV>
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<DIV>Thank you very much,<BR>Best regards,<BR>Esen<BR></DIV><BR><BR><DIV>Seniha Esen Yuksel <BR>Research Assistant <BR>Computer Vision and Image Processing Lab, <BR>Lutz Hall Rm 414, <BR>University of Louisville, <BR>Louisville, KY <BR>work ph: 502- 8521528 <BR>home ph: 502- 8549856 <BR>email: esen@cvip.uofl.edu // esenyuksel@ieee.org <BR>web: <A href="http://www.cvip.louisville.edu/~esen/">http://www.cvip.louisville.edu/~esen/</A></DIV><p>__________________________________________________<br>Do You Yahoo!?<br>Tired of spam? Yahoo! Mail has the best spam protection around <br>http://mail.yahoo.com