Source code for quantizeml.models.record

#!/usr/bin/env python
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# Copyright 2022 Brainchip Holdings Ltd.
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# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
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#    http://www.apache.org/licenses/LICENSE-2.0
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"""
Recording utilities.
"""

__all__ = ["record_quantization_variables"]

import numpy as np

from ..layers import recording


[docs]def record_quantization_variables(model):
    """Helper method to record quantization objects in the graph.

    Passing a dummy sample through the model in recording mode, this triggers the
    recording of all dynamic quantization objects.

    Args:
        model (keras.Model): model for which objects need to be recorded.
    """
    def _gen_dummy_sample(shape):
        sample = np.random.randint(0, 255, size=(1, *shape))
        return sample.astype(np.float32)

    with recording(True):
        # Create sample and pass it through the model to calibrate variables
        sample = _gen_dummy_sample(model.input.shape[1:])
        model(sample)