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

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#include "opencv2/datasets/gr_skig.hpp"

#include <opencv2/core.hpp>

#include <cstdio>
#include <cstdlib> // atoi

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

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

    // ***************
    // dataset contains pair of rgb\dep images
    // For example, let output train size and second element.
    GR_skigObj *example = static_cast<GR_skigObj *>(dataset->getTrain()[1].get());
    printf("train size: %u\n", (unsigned int)dataset->getTrain().size());
    printf("second train image:\nrgb: %s\ndep: %s\n", example->rgb.c_str(), example->dep.c_str());
    printf("person: %u, backgroud: %u, illumination: %u, pose: %u, actionType: %u\n",
           example->person, example->background, example->illumination, example->pose, example->type);

    return 0;
}