`skimage.measure._moments:moments_central`

source: /dev/scikit-image/src/skimage/measure/_moments.py :201

Signature

   def     moments_central (    image    ,    center    =  None   ,    order    =  3   ,  * ,     spacing    =  None   ,   ** kwargs      )

Calculate all central image moments up to a certain order.

The center coordinates (cr, cc) can be calculated from the raw moments as: {M[1, 0] / M[0, 0], M[0, 1] / M[0, 0]}.

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

image : (N[, ...]) double or uint8 array: Rasterized shape as image.
center : tuple of float, optional: Coordinates of the image centroid. This will be computed if it is not provided.
order : int, optional: The maximum order of moments computed.
spacing : tuple of float, shape (ndim,): The pixel spacing along each axis of the image.

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

✓

M = moments(image)
centroid = (M[1, 0] / M[0, 0], M[0, 1] / M[0, 0])
moments_central(image, centroid)

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