1 /** 2 * Copyright 2019-2021 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_RESIZE_OP_H_ 17 #define MINDSPORE_CCSRC_MINDDATA_DATASET_KERNELS_IMAGE_RANDOM_RESIZE_OP_H_ 18 19 #include <memory> 20 #include <random> 21 #include <string> 22 23 #include "minddata/dataset/core/tensor.h" 24 #include "minddata/dataset/kernels/image/resize_op.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 RandomResizeOp : public ResizeOp { 32 public: 33 // Default values, also used by python_bindings.cc 34 static const int32_t kDefTargetWidth; 35 ResizeOp(size_1,size_2)36 explicit RandomResizeOp(int32_t size_1, int32_t size_2 = kDefTargetWidth) : ResizeOp(size_1, size_2) { 37 random_generator_.seed(GetSeed()); 38 is_deterministic_ = false; 39 } 40 41 ~RandomResizeOp() = default; 42 43 // Description: A function that prints info about the node Print(std::ostream & out)44 void Print(std::ostream &out) const override { out << Name() << ": " << ResizeOp::size1_ << " " << ResizeOp::size2_; } 45 46 Status Compute(const TensorRow &input, TensorRow *output) override; 47 Name()48 std::string Name() const override { return kRandomResizeOp; } 49 NumInput()50 uint32_t NumInput() override { return -1; } 51 NumOutput()52 uint32_t NumOutput() override { return -1; } 53 54 private: 55 std::mt19937 random_generator_; 56 std::uniform_int_distribution<int> distribution_{0, 3}; 57 }; 58 } // namespace dataset 59 } // namespace mindspore 60 61 #endif // MINDSPORE_CCSRC_MINDDATA_DATASET_KERNELS_IMAGE_RANDOM_RESIZE_OP_H_ 62