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| # copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve. | |
| # | |
| # 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. | |
| import paddle | |
| class ClsPostProcess(object): | |
| """ Convert between text-label and text-index """ | |
| def __init__(self, label_list=None, key=None, **kwargs): | |
| super(ClsPostProcess, self).__init__() | |
| self.label_list = label_list | |
| self.key = key | |
| def __call__(self, preds, label=None, *args, **kwargs): | |
| if self.key is not None: | |
| preds = preds[self.key] | |
| label_list = self.label_list | |
| if label_list is None: | |
| label_list = {idx: idx for idx in range(preds.shape[-1])} | |
| if isinstance(preds, paddle.Tensor): | |
| preds = preds.numpy() | |
| pred_idxs = preds.argmax(axis=1) | |
| decode_out = [(label_list[idx], preds[i, idx]) | |
| for i, idx in enumerate(pred_idxs)] | |
| if label is None: | |
| return decode_out | |
| label = [(label_list[idx], 1.0) for idx in label] | |
| return decode_out, label | |