opencv图像基本操作

#include<iostream>
#include<opencv2\opencv.hpp>
#include<opencv2\highgui\highgui.hpp>
#include<opencv2\imgproc\imgproc.hpp>
using namespace std;
using namespace cv;


int main() {
Mat img = imread("F:\\img\\feature01.jpg");
if (img.empty()) {
cout << "error:img open failed !" << endl;
return -1;
}

imshow("img", img);

//进行腐蚀操作，腐蚀：用图像的暗色部分“腐蚀”图像的高亮部分
Mat ele = getStructuringElement(cv::MORPH_RECT, Size(10, 10));//返回值为指定形状和尺寸的矩阵
Mat des01;
erode(img, des01, ele);

imshow("erode", des01);

//进行均值滤波操作
Mat des02;
blur(img, des02, Size(5, 5));
imshow("blur", des02);


//进行canny边缘检测
Mat des03, gray, edge;
des03.create(img.size(), img.type());
cvtColor(img, gray, CV_BGR2GRAY);/*转为灰度图像*/
blur(gray, edge, Size(5, 5));
Canny(edge, edge, 3, 9, 3);
imshow("canny", edge);


//读取视频图像
VideoCapture cap("F:\\img\\v.avi");//调用摄像头：cap（0）
Mat frame;
while (1){
cap >> frame;
imshow("frame", frame);
waitKey(20);

}

waitKey(0);
return 0;
}