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

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#include "opencv2/datasets/or_pascal.hpp"

#include <opencv2/core.hpp>

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

#include <string>
#include <vector>
#include <set>

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

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

    // Print train/test/validation size and first example
    OR_pascalObj *example;
    vector< Ptr<Object> > &train = dataset->getTrain();
    printf("\ntrain:\nsize: %u", (unsigned int)train.size());
    example = static_cast<OR_pascalObj *>(train[0].get());
    printf("\nfirst image: \n%s", example->filename.c_str());

    printf("\nsize:");
    printf("\n - width: %d", example->width);
    printf("\n - height: %d", example->height);
    printf("\n - depth: %d", example->depth);

    for (unsigned int i = 0; i < example->objects.size(); i++)
    {
        printf("\nobject %d", i);
        printf("\nname: %s", example->objects[i].name.c_str());
        printf("\npose: %s", example->objects[i].pose.c_str());
        printf("\ntruncated: %d", example->objects[i].truncated);
        printf("\ndifficult: %d", example->objects[i].difficult);
        printf("\noccluded: %d", example->objects[i].occluded);

        printf("\nbounding box:");
        printf("\n - xmin: %d", example->objects[i].xmin);
        printf("\n - ymin: %d", example->objects[i].ymin);
        printf("\n - xmax: %d", example->objects[i].xmax);
        printf("\n - ymax: %d", example->objects[i].ymax);
    }

    vector< Ptr<Object> > &test = dataset->getTest();
    printf("\ntest:\nsize: %u", (unsigned int)test.size());
    example = static_cast<OR_pascalObj *>(test[0].get());
    printf("\nfirst image: \n%s", example->filename.c_str());

    vector< Ptr<Object> > &validation = dataset->getValidation();
    printf("\nvalidation:\nsize: %u", (unsigned int)validation.size());
    example = static_cast<OR_pascalObj *>(validation[0].get());
    printf("\nfirst image: \n%s\n", example->filename.c_str());

    return 0;
}