Enlarge a tensor in tensorflow

Question

I\'m searching for a tensorflow python method to enlarge (resize) a tensor to double every element in each feature map along both axis e.g.:

Answer 1

Just use tf.image.ResizeMethod with Nearest Neighbor interpolation

array = tf.image.resize_images(old_array, (old_size*2, old_size*2),
                               method=tf.image.ResizeMethod.NEAREST_NEIGHBOR)

Input to the method must be 4-D Tensor of shape [batch, height, width, channels] or 3-D Tensor of shape [height, width, channels].

https://www.tensorflow.org/api_docs/python/tf/image/resize