forked from huawei/mindspore2022
69 lines
2.0 KiB
C++
69 lines
2.0 KiB
C++
/**
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* Copyright 2021 Huawei Technologies Co., Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <sys/stat.h>
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#include <unistd.h>
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#include <fstream>
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#include <iostream>
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#include <map>
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#include <memory>
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#include <set>
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#include <string>
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#include <unordered_map>
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#include <unordered_set>
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#include <utility>
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#include <vector>
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#include "include/dataset/datasets.h"
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#include "include/dataset/iterator.h"
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#include "include/dataset/vision_lite.h"
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#include "include/dataset/transforms.h"
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#include "include/api/types.h"
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using mindspore::dataset::Album;
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using mindspore::dataset::Dataset;
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using mindspore::dataset::Iterator;
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using mindspore::dataset::SequentialSampler;
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using mindspore::dataset::TensorTransform;
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using mindspore::dataset::vision::ResizePreserveAR;
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int main(int argc, char **argv) {
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std::string folder_path = "./testAlbum/images";
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std::string schema_file = "./testAlbum/datasetSchema.json";
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std::vector<std::string> column_names = {"image", "label", "id"};
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// Create a Album Dataset
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std::shared_ptr<Dataset> ds =
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Album(folder_path, schema_file, column_names, true, std::make_shared<SequentialSampler>(0, 1));
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ds = ds->SetNumWorkers(1);
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std::shared_ptr<TensorTransform> resize(new ResizePreserveAR(1000, 1000));
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ds = ds->Map({resize}, {"image"}, {"image", "ratio", "invM"});
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std::shared_ptr<Iterator> iter = ds->CreateIterator();
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std::unordered_map<std::string, mindspore::MSTensor> row;
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iter->GetNextRow(&row);
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uint64_t i = 0;
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while (row.size() != 0) {
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i++;
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iter->GetNextRow(&row);
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}
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iter->Stop();
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}
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