How to calculate eigen values and eigen vectors of an image

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1

I tried to calculate eigen values and eigen vectors of an image by getting the array of the image

img = sitk.ReadImage("data/image.mhd")
img_arr = sitk.GetArrayFromImage(img)

w, v = numpy.linalg.eig(img_arr)

But I got an error “LinAlgError: Last 2 dimensions of the array must be square”.

How can I canculate the eigen values and eigen vectors ?

2

Square matrices have eigenvectors and eigenvalues. Interpreting an image as a matrix usually does not have much sense. What are you trying to accomplish?

The error is saying that the image you are passing should have equal sizes along X and Y dimensions (technically, i and j indexing axes).

3

I tried to get the eigen vector and eigen value of the input image