April 2020
Intermediate to advanced
438 pages
12h 2m
English
Content preview from Python Image Processing Cookbook
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How to do it...
Execute the following steps to implement image registration with SimpleITK:
- First, read the images to be aligned, a CT-scan image as the fixed (target) image, and an MRI-T1 image as the moving (source) image:
fixed_image = sitk.ReadImage("images/ct_scan_11.jpg", \ sitk.sitkFloat32)moving_image = sitk.ReadImage("images/mr_T1_06.jpg", \ sitk.sitkFloat32)
- Convert the SimpleITK Image objects into NumPy arrays to display the images using matplotlib:
fixed_image_array = sitk.GetArrayFromImage(fixed_image)moving_image_array = sitk.GetArrayFromImage(moving_image)print(fixed_image_array.shape, moving_image_array.shape)# (512, 512) (512, 512)
The following screenshot shows the fixed and the moving images and their initial alignment ...
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