I have loaded a deformation field (.mhd file) in paraview made with itk: 1) open .mhd file 2) connect the calculate and use the below expression:
MetaImage_X*iHat+MetaImage_Y*jHat+0*kHat 3) Add glyph filter. The result looks like this: http://37133.vs.webtropia.com/apache2-default/test/deform.png But now I would like to create a histogram over the magnitude of the deformation field. I have therefore selected: Filters->Data Analysis->Histogram. In the display tab I have selected GlypVector_total (Magnitude) and under "User Data Array" I have selected MetaImage. The result looks like this: http://37133.vs.webtropia.com/apache2-default/test/hist.png But how should it be interpretated? I assume that the y-axis is the pixel count and the x-axis is the magnitude size. But should the magnitudes (Norm) not always be positive? And as can be seen from the deformation field its only a small part of the image that is deformed. I would therefore expect a large number of pixels to have 0 magnitude, but that is not the case. Any input are welcome! _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
