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Thema: Opencv erkennt Kamara nicht

  1. #1

    Frage Opencv erkennt Kamara nicht


    Ich wollte hier fragen ob jemand eine Idee hat warum mein Programm meine Webcam nicht erkennt.
    Ich versuch mich bisschen mit tracking zyu beschäftigen.
    System Ubuntu 16
    Kamara würde mit chees gestestet und funktioniert
    Programm funktioniert mit video.

    Das ist die ausgabe die ich durch getBuildInformation() bekomme

    OpenCV version :
    General configuration for OpenCV 4.0.0-pre =====================================
    Version control: 4.0.0-beta-41-geb981cc7d

    Extra modules:
    Location (extra): /opt/opencv_contrib/modules
    Version control (extra): 4.0.0-beta-4-gfd63e177

    Timestamp: 2018-10-26T08:48:21Z
    Host: Linux 4.15.0-36-generic x86_64
    CMake: 3.10.2
    CMake generator: Unix Makefiles
    CMake build tool: /usr/bin/make
    Configuration: RELEASE

    CPU/HW features:
    Baseline: SSE SSE2 SSE3
    requested: SSE3
    disabled: AVX
    Dispatched code generation: SSE4_1 SSE4_2 FP16 AVX AVX2 AVX512_SKX
    requested: SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
    SSE4_1 (3 files): + SSSE3 SSE4_1
    SSE4_2 (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2
    FP16 (0 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
    AVX (5 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
    AVX2 (9 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2
    AVX512_SKX (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2 AVX_512F AVX512_SKX

    Built as dynamic libs?: YES
    C++ Compiler: /usr/bin/c++ (ver 7.3.0)
    C++ flags (Release): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG -DNDEBUG
    C++ flags (Debug): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -g -O0 -DDEBUG -D_DEBUG
    C Compiler: /usr/bin/cc
    C flags (Release): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Winit-self -Wno-narrowing -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -fvisibility=hidden -O3 -DNDEBUG -DNDEBUG
    C flags (Debug): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Winit-self -Wno-narrowing -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -fvisibility=hidden -g -O0 -DDEBUG -D_DEBUG
    Linker flags (Release):
    Linker flags (Debug):
    ccache: NO
    Precompiled headers: YES
    Extra dependencies: dl m pthread rt
    3rdparty dependencies:

    OpenCV modules:
    To be built: aruco bgsegm bioinspired calib3d ccalib core datasets dnn dnn_objdetect dpm face features2d flann freetype fuzzy gapi hfs highgui img_hash imgcodecs imgproc java_bindings_generator line_descriptor ml objdetect optflow phase_unwrapping photo plot python2 python3 python_bindings_generator reg rgbd saliency shape stereo stitching structured_light superres surface_matching text tracking video videoio videostab xfeatures2d ximgproc xobjdetect xphoto
    Disabled: world
    Disabled by dependency: -
    Unavailable: cnn_3dobj cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev cvv hdf java js matlab ovis sfm ts viz
    Applications: apps
    Documentation: NO
    Non-free algorithms: NO

    GTK+: YES (ver 2.24.32)
    GThread : YES (ver 2.56.2)
    GtkGlExt: NO

    Media I/O:
    ZLib: /usr/lib/x86_64-linux-gnu/libz.so (ver 1.2.11)
    JPEG: /usr/lib/x86_64-linux-gnu/libjpeg.so (ver 80)
    WEBP: build (ver encoder: 0x020e)
    PNG: /usr/lib/x86_64-linux-gnu/libpng.so (ver 1.6.34)
    TIFF: build (ver 42 - 4.0.9)
    JPEG 2000: build (ver 1.900.1)
    OpenEXR: build (ver 1.7.1)
    HDR: YES
    PXM: YES
    PFM: YES

    Video I/O:
    DC1394: NO
    avcodec: YES (ver 57.107.100)
    avformat: YES (ver 57.83.100)
    avutil: YES (ver 55.78.100)
    swscale: YES (ver 4.8.100)
    avresample: NO
    GStreamer: NO

    Parallel framework: TBB (ver 2018.0 interface 10001)

    Trace: YES (with Intel ITT)

    Other third-party libraries:
    Lapack: NO
    Custom HAL: NO
    Protobuf: build (3.5.1)

    Python 2:
    Interpreter: /usr/bin/python2.7 (ver 2.7.15)
    Libraries: /usr/lib/x86_64-linux-gnu/libpython2.7.so (ver 2.7.15rc1)
    numpy: /home/kico/.local/lib/python2.7/site-packages/numpy/core/include (ver 1.15.2)
    packages path: lib/python2.7/dist-packages

    Python 3:
    Interpreter: /usr/bin/python3 (ver 3.6.6)
    Libraries: /usr/lib/x86_64-linux-gnu/libpython3.6m.so (ver 3.6.6)
    numpy: /home/kico/.local/lib/python3.6/site-packages/numpy/core/include (ver 1.15.2)
    packages path: lib/python3.6/dist-packages

    Python (for build): /usr/bin/python2.7

    ant: NO
    JNI: NO
    Java wrappers: NO
    Java tests: NO

    Install to: /usr/local

    Hier der Programmcode

    #include <opencv2/opencv.hpp>
    #include <opencv2/tracking.hpp>
    #include <opencv2/core/ocl.hpp>
    #include <opencv2/tracking/tracker.hpp>
    #include <opencv2/tracking/tldDataset.hpp>

    #include <iostream>
    #include <stdio.h>

    using namespace cv;
    using namespace std;

    // Convert to string
    #define SSTR( x ) static_cast< std:stringstream & >( \
    ( std:stringstream() << std::dec << x ) ).str()

    int main(int argc, char **argv)
    // List of tracker types in OpenCV 3.4.1
    string trackerTypes[8] = {"BOOSTING", "MIL", "KCF", "TLD","MEDIANFLOW", "GOTURN", "MOSSE", "CSRT"};
    // vector <string> trackerTypes(types, std::end(types));

    // Create a tracker
    string trackerType = trackerTypes[2];

    Ptr<Tracker> tracker;

    #if (CV_MINOR_VERSION < 3)
    tracker = TrackerMIL::create();// tracker = Tracker::create(trackerType);

    if (trackerType == "BOOSTING")
    tracker = TrackerBoosting::create();
    if (trackerType == "MIL")
    tracker = TrackerMIL::create();
    if (trackerType == "KCF")
    tracker = TrackerKCF::create();
    if (trackerType == "TLD")
    tracker = TrackerTLD::create();
    if (trackerType == "MEDIANFLOW")
    tracker = TrackerMedianFlow::create();
    if (trackerType == "GOTURN")
    tracker = TrackerGOTURN::create();
    if (trackerType == "MOSSE")
    tracker = TrackerMOSSE::create();
    if (trackerType == "CSRT")
    tracker = TrackerCSRT::create();
    // Read video
    int camaraNumber =0;
    VideoCapture video ;
    video.open(0);//video.open( "/dev/video0");video.open(-1);
    // Exit if video is not opened
    cout << "OpenCV version : " << getBuildInformation() << endl;

    /* if(!video.isOpened())
    cout << "Could not read video file" << endl;
    cout << "OpenCV version : " << CV_VERSION << endl;
    cout << "Major version : " << CV_MAJOR_VERSION << endl;
    cout << "Minor version : " << CV_MINOR_VERSION << endl;
    cout << "Subminor version : " << CV_SUBMINOR_VERSION << endl;
    return 1;
    } */

    // Read first frame
    Mat frame;
    bool ok = video.read(frame);

    // Define initial bounding box
    Rect2d bbox(287, 23, 86, 320);

    // Uncomment the line below to select a different bounding box
    // bbox = selectROI(frame, false);
    // Display bounding box.
    rectangle(frame, bbox, Scalar( 255, 0, 0 ), 2, 1 );

    imshow("Tracking", frame);
    tracker->init(frame, bbox);

    // Start timer
    double timer = (double)getTickCount();

    // Update the tracking result
    bool ok = tracker->update(frame, bbox);

    // Calculate Frames per second (FPS)
    float fps = getTickFrequency() / ((double)getTickCount() - timer);

    if (ok)
    // Tracking success : Draw the tracked object
    rectangle(frame, bbox, Scalar( 255, 0, 0 ), 2, 1 );
    // Tracking failure detected.
    putText(frame, "Tracking failure detected", Point(100,80), FONT_HERSHEY_SIMPLEX, 0.75, Scalar(0,0,255),2);

    // Display tracker type on frame
    putText(frame, trackerType + " Tracker", Point(100,20), FONT_HERSHEY_SIMPLEX, 0.75, Scalar(50,170,50),2);

    // Display FPS on frame
    putText(frame, "FPS : " + SSTR(int(fps)), Point(100,50), FONT_HERSHEY_SIMPLEX, 0.75, Scalar(50,170,50), 2);

    // Display frame.
    imshow("Tracking", frame);

    // Exit if ESC pressed.
    int k = waitKey(1);
    if(k == 27)


  2. #2
    Erfahrener Benutzer Begeisterter Techniker
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