Commit 1a269ef8 authored by Alexander Alekhin's avatar Alexander Alekhin
Browse files

Merge pull request #2285 from sturkmen72:patch-4

parents 9d3efbd8 cdb57cb6

modules/datasets/samples/pd_inria.cpp

+46 −11
Original line number Diff line number Diff line
@@ -11,10 +11,19 @@ int main(int argc, char *argv[]) 
{

    const char *keys =

            "{ help h usage ? |     | show this message }"

            "{ path p         |true| path to dataset }";

            "{ path p         |true | path to dataset }"

            "{ save s         |false| save resized positive images }"

            "{ rwidth rw      |64   | width of resized positive images }"

            "{ rheight rh     |128  | height of resized positive images }"

            "{ padding        |8    | vertical padding of resized positive images }";



    CommandLineParser parser(argc, argv, keys);

    bool savebbox = parser.get<bool>("save");

    int rwidth = parser.get<int>("rwidth");

    int rheight = parser.get<int>("rheight");

    int padding = parser.get<int>("padding");

    string path(parser.get<string>("path"));



    if (parser.has("help") || path=="true")

    {

        parser.printMessage();
@@ -29,6 +38,8 @@ int main(int argc, char *argv[]) 
    cout << "train size: " << train_size << endl;

    cout << "test size: " << test_size << endl;



    int bbox_count = 0;



    for( size_t i = 0; i < train_size; i++ )

    {

        PD_inriaObj *example = static_cast<PD_inriaObj *>(dataset->getTrain()[i].get());
@@ -46,18 +57,42 @@ int main(int argc, char *argv[]) 
        // bounding boxes

        for ( size_t j = 0; j < example->bndboxes.size(); j++ )

        {

            cout << "object " << j << endl;

            int x = example->bndboxes[j].x;

            int y = example->bndboxes[j].y;

            cout << "  - xmin = " << x << endl;

            cout << "  - ymin = " << y << endl;

            cout << "  - xmax = " << example->bndboxes[j].width + x << endl;

            cout << "  - ymax = " << example->bndboxes[j].height + y << endl;

            rectangle( img, example->bndboxes[j], Scalar( 0, 0, 255 ), 2 );

            Rect obj_bndbox = example->bndboxes[j]; // bounding box of object

            cout << "  - bounding box: " << j << " - " << obj_bndbox << endl;



            int vpadding, hpadding;

            Rect ex_bndbox; // variable used for calculating expanded bounding box



            vpadding = cvRound(padding * obj_bndbox.height / rheight); // calculate vertical padding

            ex_bndbox.y = obj_bndbox.y - vpadding;

            ex_bndbox.height = 2 * vpadding + obj_bndbox.height;

            ex_bndbox.x = obj_bndbox.x + (obj_bndbox.width / 2);

            ex_bndbox.width = ex_bndbox.height * rwidth / rheight;

            ex_bndbox.x -= (ex_bndbox.width + 1) / 2;



            if (obj_bndbox.width > ex_bndbox.width)

            {

                obj_bndbox.x += (obj_bndbox.width - ex_bndbox.width + 1) / 2;

                obj_bndbox.width = ex_bndbox.width;

            }



        imshow("INRIAPerson Dataset Train Images", img);

            hpadding = obj_bndbox.x - ex_bndbox.x; // calculate horizontal padding



            if(savebbox)

            {

                Mat dst;

                copyMakeBorder(img(obj_bndbox), dst, vpadding, vpadding, hpadding, hpadding, BORDER_REFLECT);

                resize(dst, dst, Size(rwidth, rheight), 0, 0, INTER_AREA);

                imwrite(path + format("person_%04d.png", bbox_count++), dst);

            }

            else

                rectangle(img, obj_bndbox, Scalar(0, 0, 255), 2);

        }



        if (savebbox)

            continue; // skip UI updates



        imshow("INRIAPerson Dataset Train Images", img);

        cout << "\nPress a key to continue or ESC to exit." << endl;

        int key = waitKey();

        if( key == 27 ) break;