Tensorflow - How To Convert Int32 To String (using Python API For Tensorflow)

Simple question really but cannot seem to find a function in the TensorFlow docs or by googling. How can I convert a tensor of type tf.int32 to one of type tf.string? I tried simpl

Solution 1:

tf.as_string() Converts each entry in the given tensor to strings. Supports many numeric

Solution 2:

You can do that with the newly added (v1.12.0) tf.strings.format:

import tensorflow as tf

x = tf.constant([1, 2, 3], dtype=tf.int32)
x_as_string = tf.map_fn(lambda xi: tf.strings.format('{}', xi), x, dtype=tf.string)

with tf.Session() as sess:
  res = sess.run(x_as_string)
  print(res)
  # [b'1' b'2' b'3']

For Tensorflow v2,

import tensorflow as tf

x = tf.constant([1, 2, 3], dtype=tf.int32)
x_as_string = tf.map_fn(lambda xi: tf.strings.format('{}', xi), x, dtype=tf.string)

print(x_as_string.numpy())
# [b'1' b'2' b'3']