31 lines
1.0 KiB
Python
31 lines
1.0 KiB
Python
# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import base64
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import numpy as np
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def np_to_b64(images):
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img_str = base64.b64encode(images).decode('utf8')
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return img_str, images.shape
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def b64_to_np(b64str, revert_params):
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shape = revert_params["shape"]
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dtype = revert_params["dtype"]
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dtype = getattr(np, dtype) if isinstance(str, type(dtype)) else dtype
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data = base64.b64decode(b64str.encode('utf8'))
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data = np.fromstring(data, dtype).reshape(shape)
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return data |