| # Copyright 2024 The TensorFlow Authors. All Rights Reserved. | |
| # | |
| # 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 | |
| # | |
| # http://www.apache.org/licenses/LICENSE-2.0 | |
| # | |
| # Unless required by applicable law or agreed to in writing, software | |
| # distributed under the License is distributed on an "AS IS" BASIS, | |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| # See the License for the specific language governing permissions and | |
| # limitations under the License. | |
| """Yolo initializer ops.""" | |
| import tensorflow as tf, tf_keras | |
| def pytorch_kernel_initializer(kernel_initializer): | |
| """Prepare kernel weights initializer to match PyTorch implementation.""" | |
| if kernel_initializer == 'VarianceScaling': | |
| return tf_keras.initializers.VarianceScaling( | |
| scale=1 / 3, mode='fan_in', distribution='uniform' | |
| ) | |
| return kernel_initializer | |