90 lines
3.4 KiB
C++
90 lines
3.4 KiB
C++
|
/*M///////////////////////////////////////////////////////////////////////////////////////
|
||
|
|
//
|
||
|
|
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
|
||
|
|
//
|
||
|
|
// By downloading, copying, installing or using the software you agree to this license.
|
||
|
|
// If you do not agree to this license, do not download, install,
|
||
|
|
// copy or use the software.
|
||
|
|
//
|
||
|
|
//
|
||
|
|
// License Agreement
|
||
|
|
// For Open Source Computer Vision Library
|
||
|
|
//
|
||
|
|
// Copyright (C) 2014, Itseez Inc, all rights reserved.
|
||
|
|
// Third party copyrights are property of their respective owners.
|
||
|
|
//
|
||
|
|
// Redistribution and use in source and binary forms, with or without modification,
|
||
|
|
// are permitted provided that the following conditions are met:
|
||
|
|
//
|
||
|
|
// * Redistribution's of source code must retain the above copyright notice,
|
||
|
|
// this list of conditions and the following disclaimer.
|
||
|
|
//
|
||
|
|
// * Redistribution's in binary form must reproduce the above copyright notice,
|
||
|
|
// this list of conditions and the following disclaimer in the documentation
|
||
|
|
// and/or other materials provided with the distribution.
|
||
|
|
//
|
||
|
|
// * The name of the copyright holders may not be used to endorse or promote products
|
||
|
|
// derived from this software without specific prior written permission.
|
||
|
|
//
|
||
|
|
// This software is provided by the copyright holders and contributors "as is" and
|
||
|
|
// any express or implied warranties, including, but not limited to, the implied
|
||
|
|
// warranties of merchantability and fitness for a particular purpose are disclaimed.
|
||
|
|
// In no event shall the Itseez Inc or contributors be liable for any direct,
|
||
|
|
// indirect, incidental, special, exemplary, or consequential damages
|
||
|
|
// (including, but not limited to, procurement of substitute goods or services;
|
||
|
|
// loss of use, data, or profits; or business interruption) however caused
|
||
|
|
// and on any theory of liability, whether in contract, strict liability,
|
||
|
|
// or tort (including negligence or otherwise) arising in any way out of
|
||
|
|
// the use of this software, even if advised of the possibility of such damage.
|
||
|
|
//
|
||
|
|
//M*/
|
||
|
|
|
||
|
|
#include "opencv2/datasets/or_mnist.hpp"
|
||
|
|
|
||
|
|
#include <opencv2/core.hpp>
|
||
|
|
#include <opencv2/imgcodecs.hpp>
|
||
|
|
|
||
|
|
#include <cstdio>
|
||
|
|
|
||
|
|
#include <string>
|
||
|
|
#include <vector>
|
||
|
|
|
||
|
|
using namespace std;
|
||
|
|
using namespace cv;
|
||
|
|
using namespace cv::datasets;
|
||
|
|
|
||
|
|
int main(int argc, char *argv[])
|
||
|
|
{
|
||
|
|
const char *keys =
|
||
|
|
"{ help h usage ? | | show this message }"
|
||
|
|
"{ path p |true| path to dataset }";
|
||
|
|
CommandLineParser parser(argc, argv, keys);
|
||
|
|
string path(parser.get<string>("path"));
|
||
|
|
if (parser.has("help") || path=="true")
|
||
|
|
{
|
||
|
|
parser.printMessage();
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
Ptr<OR_mnist> dataset = OR_mnist::create();
|
||
|
|
dataset->load(path);
|
||
|
|
|
||
|
|
// ***************
|
||
|
|
// dataset contains for each object its image and label.
|
||
|
|
// For example, let output train & test sizes and their first elements.
|
||
|
|
printf("train size: %u\n", (unsigned int)dataset->getTrain().size());
|
||
|
|
printf("test size: %u\n", (unsigned int)dataset->getTest().size());
|
||
|
|
|
||
|
|
OR_mnistObj *example = static_cast<OR_mnistObj *>(dataset->getTrain()[0].get());
|
||
|
|
printf("first train:\nlabel: %u\n", example->label);
|
||
|
|
printf("image was saved to train0.png\n");
|
||
|
|
imwrite("train0.png", example->image);
|
||
|
|
|
||
|
|
example = static_cast<OR_mnistObj *>(dataset->getTest()[0].get());
|
||
|
|
printf("first test:\nlabel: %u\n", example->label);
|
||
|
|
printf("image was saved to test0.png\n");
|
||
|
|
imwrite("test0.png", example->image);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|