1 /** 2 * Copyright 2021 Huawei Technologies Co., Ltd 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #ifndef MINDSPORE_CCSRC_MINDDATA_DATASET_KERNELS_IMAGE_RANDOM_AUTO_CONTRAST_OP_H_ 17 #define MINDSPORE_CCSRC_MINDDATA_DATASET_KERNELS_IMAGE_RANDOM_AUTO_CONTRAST_OP_H_ 18 19 #include <memory> 20 #include <random> 21 #include <string> 22 #include <vector> 23 24 #include "minddata/dataset/core/tensor.h" 25 #include "minddata/dataset/kernels/tensor_op.h" 26 #include "minddata/dataset/util/random.h" 27 #include "minddata/dataset/util/status.h" 28 29 namespace mindspore { 30 namespace dataset { 31 class RandomAutoContrastOp : public RandomTensorOp { 32 public: RandomAutoContrastOp(float cutoff,const std::vector<uint32_t> & ignore,float prob)33 RandomAutoContrastOp(float cutoff, const std::vector<uint32_t> &ignore, float prob) 34 : cutoff_(cutoff), ignore_(ignore), distribution_(prob) {} 35 36 ~RandomAutoContrastOp() override = default; 37 38 // Provide stream operator for displaying it 39 friend std::ostream &operator<<(std::ostream &out, const RandomAutoContrastOp &so) { 40 so.Print(out); 41 return out; 42 } 43 44 Status Compute(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output) override; 45 Name()46 std::string Name() const override { return kRandomAutoContrastOp; } 47 48 private: 49 float cutoff_; 50 std::vector<uint32_t> ignore_; 51 std::bernoulli_distribution distribution_; 52 }; 53 } // namespace dataset 54 } // namespace mindspore 55 #endif // MINDSPORE_CCSRC_MINDDATA_DATASET_KERNELS_IMAGE_RANDOM_AUTO_CONTRAST_OP_H_ 56