检测直线

直线检测

void Hough_1(int, void*)
{
    vector<Vec4i> vec_lines;
    HoughLinesP(img_canny1, vec_lines, 1, CV_PI / 360.0, hough_thread,1,50);
    for (size_t k = 0; k<vec_lines.size(); k++)
    {
        Vec4i line_1 = vec_lines[k];
        double line_length = sqrt((line_1[2] - line_1[0])*(line_1[2] - line_1[0]) +(line_1[3]- line_1[1])*(line_1[3] - line_1[1]));

        if (line_length<50.0|| line_length>560.0)
        {
            continue;
        }

        line(img5, Point(line_1[0], line_1[1]), Point(line_1[2], line_1[3]), Scalar(0, 0, 255), 2, 8, 0);

    }
    imshow(win3, img5);
}

 

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