Simple script to compare images. Let's assume we have the following three images:


FLAIR	DWI b0	DWI b1000

Comparing an image with itself yields no differences.



In [1]:

    
medpy_diff.py resources/flair.nii.gz resources/flair.nii.gz









    



No other difference.

Comparing images with different dimensionality compares the meta-data but not the content.



In [2]:

    
medpy_diff.py resources/flair.nii.gz resources/b0.nii.gz









    



Dtype differs: float32 to uint16
Shape differs: (181, 217) to (1024, 1024)
The voxel content of images of different shape can not be compared. Exiting.

For fitting images, a summary of the content differences is provided.



In [4]:

    
medpy_diff.py resources/b0.nii.gz resources/b1000.nii.gz









    



Voxel differ: 1047071 of 1048576 total voxels
Max difference: 65535



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