1 /** 2 * Copyright 2020 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_IMAGE_RANDOM_AFFINE_OP_H_ 18 #define MINDSPORE_CCSRC_MINDDATA_DATASET_KERNELS_IMAGE_RANDOM_AFFINE_OP_H_ 19 20 #include <memory> 21 #include <string> 22 #include <vector> 23 24 #include "minddata/dataset/core/tensor.h" 25 #include "minddata/dataset/kernels/image/affine_op.h" 26 #include "minddata/dataset/util/status.h" 27 28 namespace mindspore { 29 namespace dataset { 30 class RandomAffineOp : public AffineOp { 31 public: 32 /// Default values, also used by python_bindings.cc 33 static const std::vector<float_t> kDegreesRange; 34 static const std::vector<float_t> kTranslationPercentages; 35 static const std::vector<float_t> kScaleRange; 36 static const std::vector<float_t> kShearRanges; 37 static const InterpolationMode kDefInterpolation; 38 static const std::vector<uint8_t> kFillValue; 39 40 explicit RandomAffineOp(std::vector<float_t> degrees, std::vector<float_t> translate_range = kTranslationPercentages, 41 std::vector<float_t> scale_range = kScaleRange, 42 std::vector<float_t> shear_ranges = kShearRanges, 43 InterpolationMode interpolation = kDefInterpolation, 44 std::vector<uint8_t> fill_value = kFillValue); 45 46 ~RandomAffineOp() override = default; 47 Name()48 std::string Name() const override { return kRandomAffineOp; } 49 50 Status Compute(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output) override; 51 52 private: 53 std::vector<float_t> degrees_range_; // min_degree, max_degree 54 std::vector<float_t> translate_range_; // maximum x translation percentage, maximum y translation percentage 55 std::vector<float_t> scale_range_; // min_scale, max_scale 56 std::vector<float_t> shear_ranges_; // min_x_shear, max_x_shear, min_y_shear, max_y_shear 57 std::mt19937 rnd_; // random device 58 }; 59 } // namespace dataset 60 } // namespace mindspore 61 62 #endif // MINDSPORE_CCSRC_MINDDATA_DATASET_KERNELS_IMAGE_RANDOM_AFFINE_OP_H_ 63