[Insight-users] Principal Component Analysis

[Luis Ibanez]

   Mark, Mark, Mark,...


   Imagine for a minute, all the lines of code that we could
   obtain from you if we manage to reroute the energy of your
   rage into a positive frequency.


   Imagine the countless technological advances that could
   result from converting your impatient motivation into
   resilient persistence.


   In this world of immediate satisfaction, we all share with
   you the frustration of having to wait a couple of hours for
   the world to pay attention to our urgent requests.


   All that youthful energy,
   currently wasted in your a display of frustration and anger...
   to no purpose.  A pity indeed.


   Let me reply to your urgent request in a separate email.


   Hopefully, by the time you read it, you would have come back
   to a civilized and positive behavior that we prefer as the
   standard of the ITK community.



     Best Regards,


        Luis



-------------------
Mark Redd wrote:
> Ok,
> no one knows the answer, so I'll try to write my code without using ITK.
> It's a pity not to have an appropriate documentation about all itk features.
> 
> goodbye
> 
> 
> 
> 2009/9/25 Mark Redd <markredd85 at gmail.com>:
> 
>>Hi people,
>>I'm finding many problems with PCA on medical images. In my student
>>career, I used to read "the fucking manual" in order to solve my
>>problems, but now I can't find it!
>>
>>There are several things I can't understand :
>>1) the difference between itkImagePCADecompositionCalculatorTest,
>>itkImagePCAShapeModelEstimator and itkPCAShapeSignedDistanceFunction
>>codes
>>
>>2) why, in their Test files, they don't accept normal images but
>>create some strange images (i think that they are created specifying
>>something that isn't a set of grayscale pixel values)
>>
>>3) why the only understandable code,
>>itkActiveShapeModelCalculatorTest.cxx, doesn't give me the
>>eigenvectors and eigenvalues, when I use model.mha and foot.mha as
>>parameter, but only the mean shape coordinates.
>>
>>So I don't want you getting bored with all my troubles, but can you
>>suggest a paper or something similiar that describe these topics? I
>>haven't foud the right answers on the official documentation and
>>doxygen is too synthetic to be understood by a newbie like me!
>>
>>I'd appreciate if someone could give some suggestions,
>>Mark
>>
> 
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