Comments on: Getting Started with Python-InsightToolkit

By: paul

paul — Mon, 03 May 2010 19:18:55 +0000

I am not sure what datatype met_short is? Are you referring to the datatype names used in Meta Images? I am pretty sure that a met_short corresponds to a normal signed short for meta images. So you would just need to use the following:

image_type = itk.Image[itk.SS, 3]

By: Paolo

Paolo — Sat, 01 May 2010 16:56:40 +0000

I’d like to use images of type met_short but if I write
image_type = itk.Image[itk.MS, 3]
it dosen’t work.
What’s the right command?
Thank you very much.

By: paul

paul — Fri, 26 Feb 2010 13:09:23 +0000

spacing isn’t a python array. To get the values, use GetElement:
spacing = reader.GetOutput().GetSpacing()
spacing_x = spacing.GetElement(0)
spacing_y = spacing.GetElement(1)
spacing_z = spacing.GetElement(2)

By: francois

francois — Fri, 26 Feb 2010 08:58:15 +0000

To set the spacing of the output image using the input image, you can do such thing :
spacing = reader.GetOutput().GetSpacing()
output_image.SetSpacing(spacing)

However, I have some trouble to have access to the spacing values !

spacing[0] does not work for instance :
TypeError: ‘itkVectorD3Ptr’ object does not support indexing

Do you know how to do this ?

By: paul

paul — Sat, 28 Nov 2009 23:45:57 +0000

@xhwang: The spacing is set a little different than that. Probably the easiest way to do it in Python is the following (for 1.5, 1.5, 2.0 spacing):
itk_image.GetSpacing().SetElement(0, 1.5)
itk_image.GetSpacing().SetElement(1, 1.5)
itk_image.GetSpacing().SetElement(2, 2.0)

By: xhwang

xhwang — Mon, 23 Nov 2009 19:49:18 +0000

hi Paul,
Do you know how to Defining Origin and Spacing use ITK-WrapITK?

I use”itk_image.SetSpacing(1.5,1.5,2.0)” to define the space of a ITK image, but failed.

Can you give a help?

many thanks~
xh

By: Anonymous

Anonymous — Wed, 31 Dec 1969 18:00:00 +0000

Thanks, Paul. These are great! My think my next big programming project will be in python now…

By: Anonymous

Anonymous — Wed, 31 Dec 1969 18:00:00 +0000

Thanks Paul. It is really a time saver, the Ubuntu repository.
I’m working on a thesis in Spain about MRI images processing. Just starting, I’d been thinking about working in C++ because I know it. But I think I should learn python, to code faster my experiments.
Will keep in touch.

Regards.

http://alexsavio.blogspot.com

By: Anonymous

Anonymous — Wed, 31 Dec 1969 18:00:00 +0000

terrific! his sure does justice to the excellent WrapITK project!

By: Anonymous

Anonymous — Wed, 31 Dec 1969 18:00:00 +0000

Hello and thanks for creating this tutorial.

I’m attempting this tutorial with pythonxy in windows and it seems to almost work, but I get the error listed below. Could you give some advice on how to fix this problem. I am quite new to using ITK. Any help is appreciated.

>>> median_filter = itk.MedianImageFilter[image_type, image_type].New()

KeyError: “itkTemplate : No template (, ) for the itk::MedianImageFilter class”