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// Copyright (C) 2018-2022 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
//
/**
* \brief Mnist reader
* \file MnistUbyte.h
*/
#pragma once
#include <memory>
#include <string>
// clang-format off
#include "format_reader.h"
#include "register.h"
// clang-format on
namespace FormatReader {
/**
* \class MnistUbyte
* \brief Reader for mnist db files
*/
class MnistUbyte : public Reader {
private:
int reverseInt(int i);
static Register<MnistUbyte> reg;
public:
/**
* \brief Constructor of Mnist reader
* @param filename - path to input data
* @return MnistUbyte reader object
*/
explicit MnistUbyte(const std::string& filename);
virtual ~MnistUbyte() {}
/**
* \brief Get size
* @return size
*/
size_t size() const override {
return _width * _height * 1;
}
// langsu: ResizeType is a added by us to support custom resizing functions (only in opencv_wrapper).
// format_reader is copied from openvino samples/cpp/common/format_reader/
// this might need special care when doing a OV uplift
std::shared_ptr<unsigned char> getData(size_t width, size_t height, ResizeType resize_type) override {
if ((width * height != 0) && (_width * _height != width * height)) {
std::cout << "[ WARNING ] Image won't be resized! Please use OpenCV.\n";
return nullptr;
}
return _data;
}
};
} // namespace FormatReader
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