moments_coords(coords, order=3)

The following properties can be calculated from raw image moments:

• Area as: M[0, 0] .

• Centroid as: { M[1, 0] / M[0, 0] , M[0, 1] / M[0, 0] }.

Note that raw moments are neither translation, scale nor rotation invariant.

Parameters

coords : (N, D) double or uint8 array

Array of N points that describe an image of D dimensionality in Cartesian space.

order : int, optional

Maximum order of moments. Default is 3.

Returns

M : (``order + 1``, ``order + 1``, ...) array

Raw image moments. (D dimensions)

Calculate all raw image moments up to a certain order.

Examples

This example is valid syntax, but we were not able to check execution

>>> coords = np.array([[row, col]
...                    for row in range(13, 17)
...                    for col in range(14, 18)], dtype=np.double)
... M = moments_coords(coords)
... centroid = (M[1, 0] / M[0, 0], M[0, 1] / M[0, 0])
... centroid
(14.5, 15.5)

See :

Back References

The following pages refer to to this document either explicitly or contain code examples using this.

skimage.measure._moments.moments_coords

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