do dnn_mmod_face_detection need more configration in project?

[jesszgc]

I am working with face detection. when i try to use dlib cnn method for FD, i write a demo code as follows. it works in dnn_mmod_face_detection_ex.cpp, but in my project it stops at "nnnet(img);" without any exception code. do i have to add some extra LIBS or FLAGS in the .pro file(i use qt) ` int cnnfacedetect() { net_type nnnet; deserialize("mmod_human_face_detector.dat") >> nnnet;

cv::VideoCapture cap;
if(!cap.open(0))
{
    std::cout<<"bad cap"<<std::endl;
    return 1;
}
std::cout<<1<<endl;
while (cv::waitKey(1) != 27)
{
    cv::Mat frame;
    matrix<rgb_pixel> img;
    if(!cap.read(frame))
    {
        std::cout<<"video end"<<std::endl;
        break;
    }
    cv::imshow("fff",frame);
    dlib::assign_image(img,cv_image<rgb_pixel>(frame));
    std::cout<<2<<endl;
    double ts=(double)cv::getTickCount();
     std::vector<dlib::mmod_rect> dets ;
    try{
        dets = nnnet(img);
        std::cout<<3<<endl;
    }
    catch (exception& e)
    {
         std::cout<<4<<endl;
        cerr<< e.what();
    }
    double te=(double)cv::getTickCount();
    std::cout<<"facetime::"<<1000*(te-ts)/cv::getTickFrequency()<<endl;
    std::cout<<5<<endl;
    if(dets.size()>0)
    {
        cv::Rect facerect=dlibRectangleToOpenCV111(dets[0].rect);
        cv::rectangle(frame,facerect,cv::Scalar(0,0,255));
    }
    cv::imshow("cnn face detect",frame);
}

`

[davisking]

It’s probably just running out of ram. Use a smaller image or buy more ram.

[jesszgc]

@davisking my image size is 640*480, and the ram is 8GB,with GTX150TI GPU. The code works in the dnn_mmod_face_detection_ex.cpp，but do not work in my project. the output in the console can get 1 and 2,but can never get to 3 or 4.

[davisking]

There aren’t any special compiler options you need to give. So I don’t know what you did to make it not work, but it’s not because there is something dlib specific you need to do.

You should use cmake. It will configure your project correctly.

[dlib-issue-bot]

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