opencv 基础操作总结

//#include<opencv2/opencv.hpp>//using namespace cv;#include <iostream>#include <fstream>#include <opencv2/core/utility.hpp>#include "opencv2/video.hpp"#include "opencv2/imgcodecs.hpp"#include "opencv2/highgui.hpp"using namespace cv;using namespace std;/*读取图像*/int readimg(){Mat img = imread("D://1.jpg");imshow("载入图像", img);waitKey(0);return 0;}/*腐蚀*/int erode(){Mat img = imread("D://1.jpg");imshow("原图",img);Mat element = getStructuringElement(MORPH_RECT,Size(15,15));Mat dstImage;erode(img,dstImage,element);imshow("效果",dstImage);waitKey(0);return 0;}/*模糊*/int blur(){Mat srcImage = imread("D://1.jpg");imshow("原图",srcImage);Mat dstImage;blur(srcImage,dstImage,Size(7,7));imshow("模糊",dstImage);waitKey(0);return 0;}/*Canny边缘检测*/int canny(){Mat srcImg=imread("D://1.jpg");imshow("原图",srcImg);Mat gray,dstImg;cvtColor(srcImg,gray,CV_RGB2GRAY);blur(gray,dstImg,Size(3,3));Canny(dstImg,dstImg,50,150,3);imshow("canny图像",dstImg);waitKey(0);return 0;}/*读取视频*/int readvideo(){VideoCapture capture("D:\\工作项目\\模拟视频\\1-上午.MP4");while (1){Mat frame;capture >> frame;if (frame.empty()){break;}imshow("读取视频",frame);waitKey(30);}return 0;}/*读取摄像头*/int main1(){VideoCapture capture(0);while (1){Mat frame;capture >> frame;imshow("camera", frame);waitKey(30);}return 0;}/*处理视频*/int main2(){VideoCapture capture("D:\\工作项目\\模拟视频\\1-上午.MP4");while (1){Mat frame;capture >> frame;cvtColor(frame,frame,COLOR_RGB2GRAY);blur(frame,frame,Size(7,7));Canny(frame,frame,50,150,3);imshow("被处理后的视频",frame);if (waitKey(30) >= 0)break;}return 0;}