cv2.kmeans usage in Python

Question

I am considering to use OpenCV\'s Kmeans implementation since it says to be faster...

Now I am using package cv2 and function kmeans,

I can not understand the pa

Answer 1

The problem here is your data_1.transpose is not a numpy array.

OpenCV 2.3.1 and higher python bindings do not take anything except numpy array as image/array parameters. so, data_1.transpose has to be a numpy array.

Generally, all the points in OpenCV are of type numpy.ndarray

eg.

array([[[100., 433.]],
       [[157., 377.]],
       .
       .  
       [[147., 247.]], dtype=float32)

where each element of array is

array([[100., 433.]], dtype=float32)

and the element of that array is

array([100., 433.], dtype=float32)