2 careerhealth careerhealth 于 2016.01.21 20:07 提问

OpenCV2.4.9自带的Camshift程序,在VS2010中运行时频繁异常终止
如题,我在运行OpenCV2.4.9自带的camshift.cpp时,几乎每次运行都异常终止。我发现一般情况下,是在跟丢目标(目标移动稍快)时,或者Smin值调节过大时异常终止。
提示为:
Runtime Error!
This application has requested the Runtime to terminate it in an unusual way.
我的OpenCV配置应该没有问题,运行其他一些程序的时候也没有类似问题。
按照一些网上的说法,似乎与内存管理有关,但是本人对代码理解尚不透彻,望有高手能帮忙找出解决方案,OpenCV自带的这段代码是否需要修改。
希望能够得到具体的回答。
很惭愧,并无c币相赠。

4个回答

caozhy
caozhy   Ds   Rxr 2016.01.21 20:15

用调试的方式运行,然后看看能不能得到跳出异常的地方呢。

careerhealth
careerhealth 运行的黑窗口提示:OpenCV Error: Bad argument<Input window has non-positive sizes> in cvMeanshift
接近 2 年之前 回复
careerhealth
careerhealth 运行的黑窗口提示:OpenCV Error: Bad argument<Input window has non-positive sizes> in cvMeanshift
接近 2 年之前 回复
careerhealth
careerhealth   2016.01.21 20:40

有时也提示:
0x75f1c42d (KernelBase.dll) 处有未经处理的异常: Microsoft C++ 异常: 内存位置 0x0048e3ac 处的 cv::Exception

careerhealth
careerhealth   2016.01.21 20:42

附上OpenCV自带的这段代码
#include "opencv2/video/tracking.hpp"
#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/highgui/highgui.hpp"

#include
#include

using namespace cv;
using namespace std;

Mat image;

bool backprojMode = false;
bool selectObject = false;
int trackObject = 0;
bool showHist = true;
Point origin;
Rect selection;
int vmin = 10, vmax = 256, smin = 30;

static void onMouse( int event, int x, int y, int, void* )
{
if( selectObject )
{
selection.x = MIN(x, origin.x);
selection.y = MIN(y, origin.y);
selection.width = std::abs(x - origin.x);
selection.height = std::abs(y - origin.y);

    selection &= Rect(0, 0, image.cols, image.rows);
}

switch( event )
{
case CV_EVENT_LBUTTONDOWN:
    origin = Point(x,y);
    selection = Rect(x,y,0,0);
    selectObject = true;
    break;
case CV_EVENT_LBUTTONUP:
    selectObject = false;
    if( selection.width > 0 && selection.height > 0 )
        trackObject = -1;
    break;
}

}

static void help()
{
cout << "\nThis is a demo that shows mean-shift based tracking\n"
"You select a color objects such as your face and it tracks it.\n"
"This reads from video camera (0 by default, or the camera number the user enters\n"
"Usage: \n"
" ./camshiftdemo [camera number]\n";

cout << "\n\nHot keys: \n"
        "\tESC - quit the program\n"
        "\tc - stop the tracking\n"
        "\tb - switch to/from backprojection view\n"
        "\th - show/hide object histogram\n"
        "\tp - pause video\n"
        "To initialize tracking, select the object with mouse\n";

}

const char* keys =
{
"{1| | 0 | camera number}"
};

int main( int argc, const char** argv )
{
help();

VideoCapture cap;
Rect trackWindow;
int hsize = 16;
float hranges[] = {0,180};
const float* phranges = hranges;
CommandLineParser parser(argc, argv, keys);
int camNum = parser.get<int>("1");

cap.open(camNum);

if( !cap.isOpened() )
{
    help();
    cout << "***Could not initialize capturing...***\n";
    cout << "Current parameter's value: \n";
    parser.printParams();
    return -1;
}

namedWindow( "Histogram", 0 );
namedWindow( "CamShift Demo", 0 );
setMouseCallback( "CamShift Demo", onMouse, 0 );
createTrackbar( "Vmin", "CamShift Demo", &vmin, 256, 0 );
createTrackbar( "Vmax", "CamShift Demo", &vmax, 256, 0 );
createTrackbar( "Smin", "CamShift Demo", &smin, 256, 0 );

Mat frame, hsv, hue, mask, hist, histimg = Mat::zeros(200, 320, CV_8UC3), backproj;
bool paused = false;

for(;;)
{
    if( !paused )
    {
        cap >> frame;
        if( frame.empty() )
            break;
    }

    frame.copyTo(image);

    if( !paused )
    {
        cvtColor(image, hsv, COLOR_BGR2HSV);

        if( trackObject )
        {
            int _vmin = vmin, _vmax = vmax;

            inRange(hsv, Scalar(0, smin, MIN(_vmin,_vmax)),
                    Scalar(180, 256, MAX(_vmin, _vmax)), mask);
            int ch[] = {0, 0};
            hue.create(hsv.size(), hsv.depth());
            mixChannels(&hsv, 1, &hue, 1, ch, 1);

            if( trackObject < 0 )
            {
                Mat roi(hue, selection), maskroi(mask, selection);
                calcHist(&roi, 1, 0, maskroi, hist, 1, &hsize, &phranges);
                normalize(hist, hist, 0, 255, CV_MINMAX);

                trackWindow = selection;
                trackObject = 1;

                histimg = Scalar::all(0);
                int binW = histimg.cols / hsize;
                Mat buf(1, hsize, CV_8UC3);
                for( int i = 0; i < hsize; i++ )
                    buf.at<Vec3b>(i) = Vec3b(saturate_cast<uchar>(i*180./hsize), 255, 255);
                cvtColor(buf, buf, CV_HSV2BGR);

                for( int i = 0; i < hsize; i++ )
                {
                    int val = saturate_cast<int>(hist.at<float>(i)*histimg.rows/255);
                    rectangle( histimg, Point(i*binW,histimg.rows),
                               Point((i+1)*binW,histimg.rows - val),
                               Scalar(buf.at<Vec3b>(i)), -1, 8 );
                }
            }

            calcBackProject(&hue, 1, 0, hist, backproj, &phranges);
            backproj &= mask;
            RotatedRect trackBox = CamShift(backproj, trackWindow,
                                TermCriteria( CV_TERMCRIT_EPS | CV_TERMCRIT_ITER, 10, 1 ));
            if( trackWindow.area() <= 1 )
            {
                int cols = backproj.cols, rows = backproj.rows, r = (MIN(cols, rows) + 5)/6;
                trackWindow = Rect(trackWindow.x - r, trackWindow.y - r,
                                   trackWindow.x + r, trackWindow.y + r) &
                              Rect(0, 0, cols, rows);
            }

            if( backprojMode )
                cvtColor( backproj, image, COLOR_GRAY2BGR );
            ellipse( image, trackBox, Scalar(0,0,255), 3, CV_AA );
        }
    }
    else if( trackObject < 0 )
        paused = false;

    if( selectObject && selection.width > 0 && selection.height > 0 )
    {
        Mat roi(image, selection);
        bitwise_not(roi, roi);
    }

    imshow( "CamShift Demo", image );
    imshow( "Histogram", histimg );

    char c = (char)waitKey(10);
    if( c == 27 )
        break;
    switch(c)
    {
    case 'b':
        backprojMode = !backprojMode;
        break;
    case 'c':
        trackObject = 0;
        histimg = Scalar::all(0);
        break;
    case 'h':
        showHist = !showHist;
        if( !showHist )
            destroyWindow( "Histogram" );
        else
            namedWindow( "Histogram", 1 );
        break;
    case 'p':
        paused = !paused;
        break;
    default:
        ;
    }
}

return 0;

}

lx624909677
lx624909677   Ds   Rxr 2016.01.22 11:04

在配置OpenCV库的时候,有把debug和release版的库混着配置吗?如果有的话分开配置,不然运行的时候就会出现这个错误

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