Source code for cnn2snn.transforms.reshape

#!/usr/bin/env python
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"""Input layer size reshaping for Keras/CNN2SNN Sequential models.
"""

from keras import Sequential, Input

from .clone import clone_model_with_weights


[docs]def reshape(model_keras, input_x, input_y):
    """ Rescales the model by changing its input size.

    Args:
        model_keras (:obj:`tf.keras.Model`): Keras model to rescale
        input_x (int): desired model input first dimension
        input_y (int): desired model input second dimension

    Returns:
        keras.Model: the rescaled model
    """
    # The reshape function is restricted to Sequential models only
    assert isinstance(model_keras, Sequential)

    # Create the desired input
    input_shape = (input_x, input_y, model_keras.input.shape[-1])
    new_input = Input(input_shape)

    # Clone the model and replace input layer
    clone = clone_model_with_weights(model_keras, input_tensors=new_input)
    return clone