我們可以通過導入舊模式,創造了簽名將此轉換爲SavedModel,並重新將其導出。此代碼是未經測試,但這樣的事情應該工作:
import json
import tensorflow as tf
from tensorflow.contrib.session_bundle import session_bundle
# Import the "old" model
session, _ = session_bundle.load_session_bundle_from_path(export_dir)
# Define the inputs and the outputs for the SavedModel
old_inputs = json.loads(tf.get_collection('inputs'))
inputs = {name: tf.saved_model.utils.build_tensor_info(tensor)
for name, tensor in old_inputs}
old_outputs = json.loads(tf.get_collection('outputs'))
outputs = {name: tf.saved_model.utils.build_tensor_info(tensor)
for name, tensor in old_outputs}
signature = tf.saved_model.signature_def_utils.build_signature_def(
inputs=inputs,
outputs=outputs,
method_name=tf.saved_model.signature_constants.PREDICT_METHOD_NAME
)
# Save out the converted model
b = builder.SavedModelBuilder(new_export_dir)
b.add_meta_graph_and_variables(session,
[tf.saved_model.tag_constants.SERVING],
signature_def_map={'serving_default': signature})
b.save()