opencv检测直线方法之形态学方法

#include "core/core.hpp" 
#include "highgui/highgui.hpp" 
#include "imgproc/imgproc.hpp" 
#include <iostream> 
 
using namespace std;
using namespace cv;
 
int main()
{
 Mat image = imread("E:\\x.jpg", 1);
 Mat imageF1, imageF2, imageF3, imageF4, imageF5, imageF6, imageF7;
 cvtColor(image, image, CV_RGB2GRAY);
 namedWindow("原图");
 imshow("原图", image);
 
 Mat element1 = getStructuringElement(MORPH_RECT, Size(73, 1)); 
 Mat element3 = getStructuringElement(MORPH_RECT, Size(1, 80));
 
 
 morphologyEx(image, imageF1, MORPH_CLOSE, element1);
 threshold(imageF1, imageF2, 200, 255, CV_THRESH_OTSU | CV_THRESH_BINARY_INV);//自适应阈值
 
 morphologyEx(image, imageF4, MORPH_CLOSE, element3);
 threshold(imageF4, imageF5, 200, 255, CV_THRESH_OTSU | CV_THRESH_BINARY_INV);
 
 bitwise_or(imageF2, imageF5, imageF7);
 
 
 namedWindow("F1");
 imshow("F1", imageF1);
 namedWindow("F2");
 imshow("F2", imageF2); 
 namedWindow("F4");
 imshow("F4", imageF4);
 namedWindow("F7");
 imshow("F7", imageF7);
 namedWindow("F5");
 imshow("F5", imageF5);
 
 
 waitKey(0);
 
 return 0;
}