How can I convert a tensor into a numpy array in TensorFlow?

Question

How to convert a tensor into a numpy array when using Tensorflow with Python bindings?

Answer 1

For your problem, Tensor returned by Session.run() or tf.eval() is already a NumPy array, except for Sparse tensor, they return Sparse value.

For example:

>>> print(type(tf.Session().run(tf.constant([1,2,3]))))

 <class 'numpy.ndarray'>

Or

>>> sess = tf.InteractiveSession() 

>>> print(type(tf.constant([1,2,3]).eval())) 

<class 'numpy.ndarray'>

Or

>>> sess = tf.Session() 

>>> with sess.as_default():

>>> print(type(tf.constant([1,2,3]).eval())) 

<class 'numpy.ndarray'>

Hope this answer helps.

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