1 /** 2 * Copyright 2020-2023 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 17 #ifndef MINDSPORE_CCSRC_MINDDATA_DATASET_KERNELS_RANDOM_COLOR_OP_H_ 18 #define MINDSPORE_CCSRC_MINDDATA_DATASET_KERNELS_RANDOM_COLOR_OP_H_ 19 20 #include <memory> 21 #include <random> 22 #include <string> 23 #include <vector> 24 25 #include <opencv2/imgproc/imgproc.hpp> 26 27 #include "minddata/dataset/core/cv_tensor.h" 28 #include "minddata/dataset/core/tensor.h" 29 #include "minddata/dataset/kernels/tensor_op.h" 30 #include "minddata/dataset/util/random.h" 31 #include "minddata/dataset/util/status.h" 32 33 namespace mindspore { 34 namespace dataset { 35 /// \class RandomColorOp random_color_op.h 36 /// \brief Blends an image with its grayscale version with random weights 37 /// t and 1 - t generated from a given range. 38 /// If the range is trivial then the weights are determinate and 39 /// t equals the bound of the interval 40 class RandomColorOp : public RandomTensorOp { 41 public: 42 RandomColorOp() = default; 43 44 ~RandomColorOp() override = default; 45 46 /// \brief Constructor 47 /// \param[in] t_lb lower bound for the random weights 48 /// \param[in] t_ub upper bound for the random weights 49 RandomColorOp(float t_lb, float t_ub); 50 51 /// \brief the main function performing computations 52 /// \param[in] in 2- or 3- dimensional tensor representing an image 53 /// \param[out] out 2- or 3- dimensional tensor representing an image 54 /// with the same dimensions as in 55 Status Compute(const std::shared_ptr<Tensor> &in, std::shared_ptr<Tensor> *out) override; 56 57 /// \brief returns the name of the op Name()58 std::string Name() const override { return kRandomColorOp; } 59 60 private: 61 std::uniform_real_distribution<float> dist_; 62 float t_lb_; 63 float t_ub_; 64 }; 65 } // namespace dataset 66 } // namespace mindspore 67 #endif // MINDSPORE_CCSRC_MINDDATA_DATASET_KERNELS_RANDOM_COLOR_OP_H_ 68