Question

因为我是opencv的新手，所以我一直在尝试从相机中检测圆形区域。而且，我完全按照文档中的原样复制了代码，但它仍然总是给运行时错误。＆＃34;断言失败（半径＆gt; = 0＆amp;＆amp;厚度＆lt; = MAX_THICKNESS＆amp;＆amp; 0＆lt; = shift＆amp;＆amp; shift＆lt; = XY_SHIFT）在cv :: circle中，文件C：\ build \ master_winpack- build-win64-vc14 \ opencv \ modules \ imgproc \ src \ drawing.cpp，第1877行＆＃34; 加＆＃34; opencv_trial.exe中0x00007FF913AB3C58处的未处理异常：Microsoft C ++异常：cv ::内存位置0x00000070F96EEF30处的异常。＆＃34;

我的代码有点像：

    int main() {
Mat image;      //matrice for original image
Mat image_hsv;  //matrice for hsv image
Mat image_gray;
Mat red_hue_image;   //matrice for binary image
VideoCapture cap;
int camOpen = cap.open(CV_CAP_ANY);

vector<Vec3f> circles;

while (true) {
cap >> image;          //intake the input of camera
if(!image.empty())    //check if camera is working
{
    imshow("window", image);            //showing of image
    cvtColor(image,image_hsv,CV_RGB2HSV);        // conversion of rgbimage to hsv
    cvtColor(image,image_gray,CV_RGB2GRAY);
    GaussianBlur(image_hsv,image_hsv,Size(9,9),2,2);
    imshow("hsv",image_hsv);                    //showing of hsv image      
    imshow("gray",image_gray);
    inRange(image_hsv,Scalar(110,100,100),Scalar(130,255,255),red_hue_image);           //binary-ing for red color to be white, all others black    
    imshow("processed image",red_hue_image);
    ///////////////////////////////////////////////////

    HoughCircles(image_gray,circles,CV_HOUGH_GRADIENT,1.0,image_gray.rows/8,100,100,0,1000);
    for(size_t i=0; i<circles.size();i++)
    {
        Point center(cvRound(circles[i][0]), cvRound(circles[i][1]));
     int radius = cvRound(circles[i][2]);
     // draw the circle center
     circle( image_gray, center, 3, Scalar(0,255,0), -1, 8, 0 );
     // draw the circle outline
     circle( image_gray, center, radius, Scalar(0,0,255), 3, 8, 0 );

     Vec3i c = circles[i];
     circle( image, Point(c[0], c[1]), c[2], Scalar(0,0,255), 3, LINE_AA);
    circle( image, Point(c[0], c[1]), 2, Scalar(0,255,0), 3, LINE_AA);
    }
    imshow("circles", image);
}

//延迟33ms 如果（waitKey（5）== 27）{

break;
}
}
return 0;

}

如果我删除houghcircle行，我没有得到任何运行时错误，我可以看到我的camerea打开。但是在那条线上，程序崩溃了。拜托，任何人都可以帮我吗？

Answer 1

此功能

HoughCircles(image_gray,circles,CV_HOUGH_GRADIENT,1.0,image_gray.rows/8,100,100,0,1000);

具体是最后2个参数......最小半径和最大半径，

尝试使用较小的值，如：

HoughCircles(image_gray,circles,CV_HOUGH_GRADIENT,1.0,image_gray.rows/8,100,20,0,0);

由于houghCircles（）导致opencv中的运行时错误

1 个答案: