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tf.keras.backend.dtype

TensorFlow 2 version View source on GitHub

Returns the dtype of a Keras tensor or variable, as a string.

x Tensor or variable.

String, dtype of x.

Examples:

from keras import backend as K
K.dtype(K.placeholder(shape=(2,4,5)))
'float32'
K.dtype(K.placeholder(shape=(2,4,5), dtype='float32'))
'float32'
K.dtype(K.placeholder(shape=(2,4,5), dtype='float64'))
'float64'
# Keras variable
kvar = K.variable(np.array([[1, 2], [3, 4]]))
K.dtype(kvar)
'float32'
kvar = K.variable(np.array([[1, 2], [3, 4]]), dtype='float32')
K.dtype(kvar)
'float32'