BufferError: memoryview: underlying buffer is not C-contiguous

[andersenthomas]

I'm getting "BufferError: memoryview: underlying buffer is not C-contiguous" when running pyelastix.register on two numpy arrays. Any ideas?

[soupault]

Try to use numpy.ascontiguousarray beforehand - https://docs.scipy.org/doc/numpy/reference/generated/numpy.ascontiguousarray.html. We need to sanitize the inputs, anyway.

[samtzai]

Even if you use np.ascontigousarray beforehand, you can get that error on writing the data file, specially for huge images. pyelastix code should convert the array into contigous before writting the image back:#

Write data file f = open(fname_raw, 'wb') try: f.write(im.data) except: f.write(np.ascontiguousarray(im.data)) finally: f.close()

[almarklein]

Closed by #23

[samtzai]

Thanks Almar,

Remember that you still need to make the input arrays contiguous. I only updated the output array

On Thu, Apr 2, 2020, 10:00 AM Almar Klein [email protected] wrote:

Closed #14 https://github.com/almarklein/pyelastix/issues/14.

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[almarklein]

Remember that you still need to make the input arrays contiguous. I only updated the output array

Thanks for the clearification @samtzai! Let's re-open.