OpenCV/opencv_contrib/modules/datasets/samples/ir_robot.cpp

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#include "opencv2/datasets/ir_robot.hpp"

#include <opencv2/core.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 folders }";
    CommandLineParser parser(argc, argv, keys);
    string path(parser.get<string>("path"));
    if (parser.has("help") || path=="true")
    {
        parser.printMessage();
        return -1;
    }

    Ptr<IR_robot> dataset = IR_robot::create();
    dataset->load(path);

    // ***************
    // dataset contains object with name and its images.
    // For example, let output last element and dataset size.
    IR_robotObj *example = static_cast<IR_robotObj *>(dataset->getTrain().back().get());
    printf("last dataset object:\n");
    printf("name: %s\n", example->name.c_str());
    printf("number postitions: %u\n", (unsigned int)example->pos.size());
    string currPath(path + example->name + "/");

    for (vector<cameraPos>::iterator itP=example->pos.begin(); itP!=example->pos.end(); ++itP)
    {
        for (vector<string>::iterator it=itP->images.begin(); it!=itP->images.end(); ++it)
        {
            printf("%s\n", (currPath+(*it)).c_str());
        }
    }
    printf("dataset size: %u\n", (unsigned int)dataset->getTrain().size());

    return 0;
}