Numpy array is ambiguous?

[liuxj901103]

The "if features == None:" in function niqe() should be "if features is None:".

[H-Wenfeng]

I have met the same problem

[Anaga352]

Hi! I have got the same issue... The error says-

In Line if features == None:

ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()

Could anyone pls help me out, Thanks !