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mindspore/mindspore/ccsrc/minddata/dataset/api/transforms.cc

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/**
* Copyright 2020 Huawei Technologies Co., Ltd
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "minddata/dataset/include/transforms.h"
#include "minddata/dataset/kernels/image/image_utils.h"
// Kernel data headers (in alphabetical order)
#include "minddata/dataset/kernels/data/one_hot_op.h"
namespace mindspore {
namespace dataset {
namespace api {
TensorOperation::TensorOperation() {}
// Transform operations for data.
namespace transforms {
// FUNCTIONS TO CREATE DATA TRANSFORM OPERATIONS
// (In alphabetical order)
// Function to create OneHotOperation.
std::shared_ptr<OneHotOperation> OneHot(int32_t num_classes) {
auto op = std::make_shared<OneHotOperation>(num_classes);
// Input validation
if (!op->ValidateParams()) {
return nullptr;
}
return op;
}
/* ####################################### Validator Functions ############################################ */
/* ####################################### Derived TensorOperation classes ################################# */
// (In alphabetical order)
// OneHotOperation
OneHotOperation::OneHotOperation(int32_t num_classes) : num_classes_(num_classes) {}
bool OneHotOperation::ValidateParams() {
if (num_classes_ < 0) {
MS_LOG(ERROR) << "OneHot: Number of classes cannot be negative. Number of classes: " << num_classes_;
return false;
}
return true;
}
std::shared_ptr<TensorOp> OneHotOperation::Build() { return std::make_shared<OneHotOp>(num_classes_); }
} // namespace transforms
} // namespace api
} // namespace dataset
} // namespace mindspore