teddybur13's profile - activity

I used this code but it detects many objects in the video:

using namespace cv; using namespace std;

int main() {

//global variables Mat frame; //current frame Mat back; Mat fore, fMOG2, fKNN; Mat resizeF; Mat fgMaskMOG; //fg mask generated by MOG method String stat= "Unoccupied";

Ptr<backgroundsubtractormog2> pMOG; //MOG Background subtractor pMOG = createBackgroundSubtractorMOG2(); pMOG->setNMixtures(3); pMOG->setDetectShadows(0);

Ptr<backgroundsubtractorknn> pKNN; pKNN = createBackgroundSubtractorKNN(); pKNN->setDetectShadows(0);

//rect //int largest_area=0; //int largest_contour_index =0; vector<vector<point> > contours; vector<vec4i> hierarchy;

VideoCapture stream1(0); //0 is the id of video device.0 if you have only one camera

while(1){ Mat cameraFrame, cont, thresholds; if(!(stream1.read(frame))) //get one frame form video break;

    pMOG->apply(frame, fore);
    pKNN->apply(frame, fKNN);

    pMOG->getBackgroundImage(back);
    erode(fore, fore, Mat());
    dilate(fore, fore, Mat());

    //working con
    //findContours(fore, contours, CV_RETR_EXTERNAL, CV_CHAIN_APPROX_NONE);
    //drawContours(frame, contours, -1, Scalar(0,0,255),2);

    //contour
    //vector<Vec4i> hierarchy;
    //findContours(frame, contours, hierarchy, CV_RETR_TREE, CV_CHAIN_APPROX_SIMPLE, Point(0, 0)); //detect contours

    findContours(fore, contours, CV_RETR_EXTERNAL, CV_CHAIN_APPROX_NONE); //working_on
    vector<vector<Point> > contours_poly(contours.size());
    vector<Rect> bounding_rect(contours.size());

    /*
    for(int i =0; i<contours.size(); i++){
        double a= contourArea(contours[i], false);
        if(a>100){
            approxPolyDP(Mat(contours[i]),contours_poly[i],3,true);
            bounding_rect[i] = boundingRect(Mat(contours_poly[i]));
        }
    } */

    for(int i=0; i < contours.size(); i++){
        double a= contourArea(contours[i], false);

        //set the area size for which the program detects the object as vehicle
        if(a>500){
            approxPolyDP(Mat(contours[i]),contours_poly[i],3,true);
            bounding_rect[i] = boundingRect(Mat(contours_poly[i]));
            //largest_area=a;
            //largest_contour_index=i;
            //bounding_rect=boundingRect(contours[i]);
            rectangle(frame, bounding_rect[i].tl(), bounding_rect[i].br(),Scalar(0,255,0),1,8,0);
            stat = "Occupied";
        }
        else{
            stat = "Unoccupied";
        }
    }

    Scalar color(255,255,255);
    //drawContours( frame, contours,largest_contour_index, color, CV_FILLED, 8, hierarchy );
    //drawContours(frame, contours, -1, Scalar(0,0,255),2); //working
    //rectangle(frame, bounding_rect, Scalar(0,255,0),1,8,0);
    putText(frame, "Lot Status: "+stat, Point(10,20), FONT_HERSHEY_SIMPLEX, 0.5,(0,0,255),2,8);

    imshow("Origin", frame);
    imshow("MOG2", fore);
    //imshow("KNN", fKNN);
    //imshow("contour", frame_dupe);


    if (waitKey(30) >= 0)
     break;

}

}

Im trying for days now on building opencv 3.1.0. I followed this method( http://cookyourpc.blogspot.com/2015/0...) Everything works fine until in buidling the opencv libraries (Cmake part) everytime i run "mingw32-make" i always encounter this error:

Used Versions: 1. OS:Windows 10 64 bit 2. OpenCV: OpenCV 3.1.0 3. MingW: mingw64 (used mingw32 6.2.0) 4. Cmake: cmake 3.6.2 -win32- x86

Linking CXX executable ....\bin\opencv_perf_core.exe ../../lib/libopencv_ts310.a(ts.cpp.obj):ts.cpp:(.text$_ZN6cvtest2TS4initERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x119): undefined reference to `cv::redirectError(int ()(int, char const, char const, char const, int, void), void, void)' collect2.exe: error: ld returned 1 exit status modules\core\CMakeFiles\opencv_perf_core.dir\build.make:858: recipe for target 'bin/opencv_perf_core.exe' failed mingw32-make[2]: [bin/opencv_perf_core.exe] Error 1 CMakeFiles\Makefile2:1543: recipe for target 'modules/core/CMakeFiles/opencv_perf_core.dir/all' failed mingw32-make[1]: [modules/core/CMakeFiles/opencv_perf_core.dir/all] Error 2 Makefile:159: recipe for target 'all' failed mingw32-make: * [all] Error 2

Linking CXX executable ....\bin\opencv_perf_core.exe ../../lib/libopencv_ts310.a(ts.cpp.obj):ts.cpp:(.text$_ZN6cvtest2TS4initERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x119): undefined reference to `cv::redirectError(int ()(int, char const, char const, char const, int, void), void, void)' collect2.exe: error: ld returned 1 exit status modules\core\CMakeFiles\opencv_perf_core.dir\build.make:858: recipe for target 'bin/opencv_perf_core.exe' failed mingw32-make[2]: [bin/opencv_perf_core.exe] Error 1 CMakeFiles\Makefile2:1543: recipe for target 'modules/core/CMakeFiles/opencv_perf_core.dir/all' failed mingw32-make[1]: [modules/core/CMakeFiles/opencv_perf_core.dir/all] Error 2 Makefile:159: recipe for target 'all' failed mingw32-make: * [all] Error 2

Is anyone know how to use opencv 3.1 in eclipse ide? (windows 64bit) ive searching for days now and still cant figure out how. Ive tried this method (http://cookyourpc.blogspot.com/2015/0...) but when I run the "mingw32-make" part i always got errors.

C:\opencv\sources\modules\core\src\parallel.cpp: In function 'int cv::getThreadNum()': C:\opencv\sources\modules\core\src\parallel.cpp:457:45: error: 'pthread_self' was not declared in this scope return (int)(size_t)(void)pthread_self(); // no zero-based indexing ^ modules\core\CMakeFiles\opencv_core.dir\build.make:965: recipe for target 'modules/core/CMakeFiles/opencv_core.dir/src/parallel.cpp.obj' failed mingw32-make[2]: [modules/core/CMakeFiles/opencv_core.dir/src/parallel.cpp.obj] Error 1 CMakeFiles\Makefile2:1468: recipe for target 'modules/core/CMakeFiles/opencv_core.dir/all' failed mingw32-make[1]: [modules/core/CMakeFiles/opencv_core.dir/all] Error 2 Makefile:159: recipe for target 'all' failed mingw32-make: ** [all] Error 2

even i apply this