How to reshape numpy image? [duplicate]

Question

I have an image as a numpy array with shape (channels, height, width) how can I reshape it so that it has shape (height, width, channels)?

Answer 1

I assume it would be quicker to use the built-in numpy function.

np.rollaxis(array_name,0,3).shape

Answer 2

You can use transpose() to choose the order of the axes. In this case you want:

array.transpose(1, 2, 0)

This creates a new view onto the original array whenever possible (no data will be copied).