How to use ImageRegionIterator and ImageRegionConstIteratorWithIndex in python

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1

I tried to write something like the below using python, I can’t find equivalence classes in python.
Is there any way to do it in python?

typedef itk::ImageRegionIterator< OutputImageType > OutIteratorType;
IteratorType fixedImageI( fixedImage, fixedImageRegion );

typedef itk::ImageRegionIterator< OutputImageType > OutIteratorType;
OutIteratorType sAirTrappingI(sAirTrapping,fixedImageRegion);

2

There are no iterators in Python. Pixel iteration is quite inefficient in Python. The closest equivalent is using value = image.GetPixel(index) and image.SetPixel(index, value).

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3

Could you please give me an example about the equivalent of the below in Python? I am a newbie in this field, I do not understand it clearly

RegionType fixedImageRegion=fixedImage->GetBufferedRegion();

IteratorType fixedImageI( fixedImage, fixedImageRegion );
....
++fixedImageI
4

Take a look at this example, it has both C++ and Python code.

5

If you want to iterate over the entire image, the nested for loops is the usual approach in Python:

for k in range (0, zSize):
  for j in range (0, ySize):
    for i in range (0, xSize):
      image.SetPixel(...)
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