tf.keras.backend.cast
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Casts a tensor to a different dtype and returns it.
tf.keras.backend.cast(
x, dtype
)
You can cast a Keras variable but it still returns a Keras tensor.
Arguments |
|---|
x
|
Keras tensor (or variable).
|
dtype
|
String, either ('float16', 'float32', or 'float64').
|
Returns |
|---|
Keras tensor with dtype dtype.
|
Examples:
Cast a float32 variable to a float64 tensor
input = tf.keras.backend.ones(shape=(1,3))
print(input)
<tf.Variable 'Variable:0' shape=(1, 3) dtype=float32,
numpy=array([[1., 1., 1.]], dtype=float32)>
cast_input = tf.keras.backend.cast(input, dtype='float64')
print(cast_input)
tf.Tensor([[1. 1. 1.]], shape=(1, 3), dtype=float64)
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Last updated 2020-10-01 UTC.
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TensorFlow 1 version
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