`skimage.measure._moments:moments_normalized`

source: /dev/scikit-image/src/skimage/measure/_moments.py :280

Signature

def moments_normalized ( mu , order = 3 , spacing = None )

Calculate all normalized central image moments up to a certain order.

Note that normalized central moments are translation and scale invariant but not rotation invariant.

mu : (M[, ...], M) array: Central image moments, where M must be greater than or equal to order.
order : int, optional: Maximum order of moments. Default is 3.
spacing : tuple of float, shape (ndim,): The pixel spacing along each axis of the image.

nu : (``order + 1``[, ...], ``order + 1``) array: Normalized central image moments.

image = np.zeros((20, 20), dtype=np.float64)
image[13:17, 13:17] = 1

✓

m = moments(image)
centroid = (m[0, 1] / m[0, 0], m[1, 0] / m[0, 0])
mu = moments_central(image, centroid)
moments_normalized(mu)

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