[Insight-users] Create histogram of the deformation field
magnitude
Xiang, Hong
HXIANG at LROC.HARVARD.EDU
Mon May 15 11:08:14 EDT 2006
Thanks Luis for walking through the steps, I'll let you know if I have any
problem in getting the intended histograms.
Regards,
Hong
-----Original Message-----
From: Luis Ibanez [mailto:luis.ibanez at kitware.com]
Sent: Mon 5/15/2006 10:54 AM
To: Xiang, Hong
Cc: Karthik.Krishnan at kitware.com; insight-users at itk.org
Subject: Re: [Insight-users] Create histogram of the deformation field magnitude
Hi Hong,
Sure,
you can generate this histogram in the following way:
1) pass your deformation filed to the filter:
GradientToMagnitudeImageFilter:
http://www.itk.org/Insight/Doxygen/html/classitk_1_1GradientToMagnitudeImageFilt
er.html
2) Take the output Scalar image and pass it to a histogram calculator.
ScalarImageToHistogramGenerator
http://www.itk.org/Insight/Doxygen/html/classitk_1_1Statistics_1_1ScalarImageToH
istogramGenerator.html
You will find an example on how to compute histograms in the file
Insight/Examples/Statistics/ImageHistogram2.cxx
This example is described in the ITK Software Guide
http://www.itk.org/ItkSoftwareGuide.pdf
Regards,
Luis
-====================
Xiang, Hong wrote:
> Hello Karthik and Luis, or any users who may have done this before...
>
> I wish to generate histograms for the magnitudes of the vector displace-
> ments (deformation fields) given outputs of deformable registrations. Is
> there a good way in ITK or paraview to help with this?
>
> Thanks in advance,
> Hong
>
>
>
>
>
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