(vtkmodules.vtkImagingCore.vtkImageReslice)0x7f580e63ec20

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1

I am trying to understand a code to generate MIPs for nifti format images
could you please help me with:
**(vtkmodules.vtkImagingCore.vtkImageReslice)0x7f580e63ec20 **
what exactly is this line

2

How is this line being created? Can you share your code?

3

That’s the repr() of a VTK object in the Python wrappers. It’s the type and address of the object.

Python 3.8.10 (default, Jun  2 2021, 10:49:15) 
[GCC 9.4.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import vtk
>>> reslice = vtk.vtkImageReslice()
>>> reslice
(vtkmodules.vtkImagingCore.vtkImageReslice)0x7f962eb526a0
4

image_path = “/content/drive/MyDrive/10001.zip (Unzipped Files)/10001/orig/TOF.nii.gz”
reader = vtk.vtkNIFTIImageReader()
reader.SetFileName(image_path)
reader.SetDataExtent(0, 63, 0, 63, 1, 93)
reader.SetDataSpacing(3.2, 3.2, 1.5)
reader.SetDataOrigin(0.0, 0.0, 0.0)
reader.SetDataScalarTypeToUnsignedShort()
reader.UpdateWholeExtent()
#reader.TimeAsVectorOn()
reader.Update()
(xMin, xMax, yMin, yMax, zMin, zMax) = reader.GetExecutive().GetWholeExtent(reader.GetOutputInformation(0))
(xSpacing, ySpacing, zSpacing) = reader.GetOutput().GetSpacing()
(x0, y0, z0) = reader.GetOutput().GetOrigin()

center = [x0 + xSpacing * 0.5 * (xMin + xMax),
y0 + ySpacing * 0.5 * (yMin + yMax),
z0 + zSpacing * 0.5 * (zMin + zMax)]
axial = vtk.vtkMatrix4x4()
axial.DeepCopy((1, 0, 0, center[0],
0, 1, 0, center[1],
0, 0, 1, center[2],
0, 0, 0, 1))

coronal = vtk.vtkMatrix4x4()
coronal.DeepCopy((1, 0, 0, center[0],
0, 0, 1, center[1],
0,-1, 0, center[2],
0, 0, 0, 1))

sagittal = vtk.vtkMatrix4x4()
sagittal.DeepCopy((0, 0,-1, center[0],
1, 0, 0, center[1],
0,-1, 0, center[2],
0, 0, 0, 1))

oblique = vtk.vtkMatrix4x4()
oblique.DeepCopy((1, 0, 0, center[0],
0, 0.866025, -0.5, center[1],
0, 0.5, 0.866025, center[2],
0, 0, 0, 1))
reslice = vtk.vtkImageReslice()
reslice.SetInputConnection(reader.GetOutputPort())
reslice.SetOutputDimensionality(2)
reslice.SetResliceAxes(sagittal)
reslice.SetInterpolationModeToLinear()

table = vtk.vtkLookupTable()
table.SetRange(0, 2000) # image intensity range
table.SetValueRange(0.0, 1.0) # from black to white
table.SetSaturationRange(0.0, 0.0) # no color saturation
table.SetRampToLinear()
table.Build()

color = vtk.vtkImageMapToColors()
color.SetLookupTable(table)
color.SetInputConnection(reslice.GetOutputPort())
actor = vtk.vtkImageActor()
actor.GetMapper().SetInputConnection(color.GetOutputPort())

renderer = vtk.vtkRenderer()
renderer.AddActor(actor)

window = vtk.vtkRenderWindow()
window.AddRenderer(renderer)

This is the code it is causing to crash the runtime after actor.GetMapper().SetInputConnection(color.GetOutputPort())