tf.keras.backend.ndim

TensorFlow 2 version View source on GitHub

Returns the number of axes in a tensor, as an integer.

x Tensor or variable.

Integer (scalar), number of axes.

Examples:

from keras import backend as K
input = K.placeholder(shape=(2, 4, 5))
val = np.array([[1, 2], [3, 4]])
kvar = K.variable(value=val)
K.ndim(input)
3
K.ndim(kvar)
2