标签:color 图片 out scala tor chain rac return lin
#include <iostream>
#include <opencv2/opencv.hpp>
using namespace std;
using namespace cv;
Mat img1, img2, img3, img4, img_result, img_gray1, img_gray2, img_gray3, img_canny1;
char win1[] = "window1";
char win2[] = "window2";
char win3[] = "window3";
char win4[] = "window4";
char win5[] = "window5";
int thread_value = 100;
int max_value = 255;
RNG rng1(12345);
int Demo_Convex_Hull();
void Demo_1(int, void*);
//发现凸包
int Demo_Convex_Hull()
{
namedWindow(win1, CV_WINDOW_AUTOSIZE);
namedWindow(win2, CV_WINDOW_AUTOSIZE);
//namedWindow(win3, CV_WINDOW_AUTOSIZE);
img1 = imread("D://images//1//temp2.jpg");
//img2 = imread("D://images//1//p5_1.jpg");
if (img1.empty())
{
cout << "could not load image..." << endl;
return 0;
}
imshow(win1, img1);
img4 = Mat::zeros(img1.size(),CV_8UC3);
//转灰度图
cvtColor(img1, img_gray1, CV_BGR2GRAY);
//模糊处理
blur(img_gray1, img2, Size(3, 3), Point(-1, -1),BORDER_DEFAULT);
createTrackbar("track", win1, &thread_value, max_value, Demo_1);
Demo_1(0,0);
return 0;
}
void Demo_1(int,void*)
{
vector<vector<Point>> vec_p;
vector<Vec4i> vec_4i;
threshold(img2, img3, thread_value, max_value, THRESH_BINARY);
findContours(img3, vec_p, vec_4i, RETR_TREE, CHAIN_APPROX_SIMPLE, Point(0, 0));
vector<vector<Point>> convexs(vec_p.size());
for (size_t i=0;i<vec_p.size();i++)
{
convexHull(vec_p[i], convexs[i], false, true);
}
for (size_t j=0;j<vec_p.size();j++)
{
Scalar color_1 = Scalar(rng1.uniform(0,255), rng1.uniform(0, 255), rng1.uniform(0, 255));
drawContours(img4, vec_p, j, color_1, 2, LINE_8, vec_4i, 0, Point(0, 0));
drawContours(img4, convexs, j, color_1, 2, LINE_8, vec_4i, 0, Point(0, 0));
}
imshow(win2,img4);
}
int main()
{
Demo_Convex_Hull();
waitKey(0);
return 0;
}
标签:color 图片 out scala tor chain rac return lin
原文地址:https://www.cnblogs.com/herd/p/9737457.html