服务器端
#include "stdafx.h"#include <opencv2/opencv.hpp>#include <WinSock2.h>#include <string>#include <iostream>#include <Windows.h>#pragma comment (lib, "ws2_32.lib")#pragma warning(disable : 4996)using namespace cv;using namespace std;//待传输图像默认大小为 640*480，可修改#define IMG_WIDTH 640// 需传输图像的宽#define IMG_HEIGHT 480// 需传输图像的高//默认格式为CV_8UC3#define BUFFER_SIZE IMG_WIDTH*IMG_HEIGHT*3/32 struct recvbuf{char buf[BUFFER_SIZE];int flag;char b[30];};recvbuf data_recv;Mat recieveMat(SOCKET sockServer);int main() {//初始化 DLLWSADATA data;WORD w = MAKEWORD(2, 0);::WSAStartup(w, &data);// 创建套接字SOCKET s;s = ::socket(AF_INET, SOCK_STREAM, 0);// 构造ip地址sockaddr_in addr;addr.sin_family = AF_INET;addr.sin_addr.S_un.S_addr = inet_addr("202.113.76.34");//ip地址是服务器端ip地址addr.sin_port = htons(1234);::bind(s, (SOCKADDR*)&addr, sizeof(SOCKADDR));//进入监听状态listen(s, 5);//接收客户端请求SOCKADDR clntAddr;int nSize = sizeof(SOCKADDR);SOCKET clntSock = accept(s, (SOCKADDR*)&clntAddr, &nSize);std::cout << "linked\n";/*Mat frame = recieveMat(s);if (frame.data) imshow("Camera", frame);waitKey(0);*/while (true) {Mat frame = recieveMat(clntSock);if (frame.data) imshow("Camera", frame);if (waitKey(1) >= 0)break;}::closesocket(s);::closesocket(clntSock);::WSACleanup();}Mat recieveMat(SOCKET sockServer) {Mat img(IMG_HEIGHT, IMG_WIDTH, CV_8UC3, cv::Scalar(0));int needRecv = sizeof(recvbuf);int count = 0;for (int i = 0; i < 32; i++) {int pos = 0;int len0 = 0;while (pos < needRecv) {len0 = recv(sockServer, (char*)(&data_recv) + pos, needRecv - pos, 0);pos += len0;}count = count + data_recv.flag;int num1 = IMG_HEIGHT / 32 * i;for (int j = 0; j < IMG_HEIGHT / 32; j++) {int num2 = j * IMG_WIDTH * 3;uchar* ucdata = img.ptr<uchar>(j + num1);for (int k = 0; k < IMG_WIDTH * 3; k++) {ucdata[k] = data_recv.buf[num2 + k];}}if (data_recv.flag == 2) {if (count == 33) {string a(data_recv.b);cout << a << endl;return img;}else {count = 0;i = 0;}}}}
客户端
#include "stdafx.h"#include "opencv2/opencv.hpp"#include <string>#include <iostream>#include <WinSock2.h>#include <Windows.h>#pragma comment (lib, "ws2_32.lib") //加载 ws2_32.dll#pragma warning(disable : 4996)//待传输图像默认大小为 640*480，可修改#define IMG_WIDTH 640// 需传输图像的宽#define IMG_HEIGHT 480// 需传输图像的高//默认格式为CV_8UC3#define BUFFER_SIZE IMG_WIDTH*IMG_HEIGHT*3/32 using namespace cv;using namespace std;struct sentbuf {char buf[BUFFER_SIZE];int flag;char b[30];};sentbuf dataSend;void sendMat(SOCKET sockClient, Mat image);string testastring;int main(int, char**){VideoCapture cap(0); // open the default cameraif (!cap.isOpened()) // check if we succeededreturn -1;Mat frame;//初始化 DLLWSADATA wsaData;::WSAStartup(MAKEWORD(2, 0), &wsaData);//创建套接字SOCKET servSock = ::socket(AF_INET, SOCK_STREAM, 0);//绑定套接字sockaddr_in sockAddr;sockAddr.sin_family = AF_INET;sockAddr.sin_addr.S_un.S_addr = inet_addr("202.113.76.34");//该ip地址是服务器端ip地址sockAddr.sin_port = htons(1234);std::cout << "connecting\n";::connect(servSock, (sockaddr*)&sockAddr, sizeof(sockAddr));std::cout << "linked\n";int count = 0;for (;;){cap >> frame; // get a new frame from cameratestastring = "D://put//a.bmp" + to_string(count);count++;sendMat(servSock, frame);}//cap >> frame; // get a new frame from camera/*Mat temp;temp = imread("F://abcd.png");resize(temp, frame, Size(640, 480));testastring = "D://put//a.bmp" + to_string(count);count++;sendMat(clntSock, frame);*/// the camera will be deinitialized automatically in VideoCapture destructor//关闭套接字closesocket(servSock);//终止 DLL 的使用WSACleanup();return 0;}void sendMat(SOCKET sockClient, Mat image) {memset(dataSend.b, 0, sizeof(dataSend.b) / sizeof(char));strcpy(dataSend.b, testastring.c_str());for (int k = 0; k < 32; k++) {int num1 = IMG_HEIGHT / 32 * k;for (int i = 0; i < IMG_HEIGHT / 32; i++) {int num2 = i * IMG_WIDTH * 3;uchar* ucdata = image.ptr<uchar>(i + num1);for (int j = 0; j < IMG_WIDTH * 3; j++) {dataSend.buf[num2 + j] = ucdata[j];}}if (k == 31)dataSend.flag = 2;elsedataSend.flag = 1;send(sockClient, (char *)(&dataSend), sizeof(dataSend), 0);}}
注意事项：
1.如果报错的话可以先考虑c++ ->预处理器 ->预处理器定义 ->加上_CRT_SECURE_NO_WARNINGS
2.要注意头文件#include <WinSock2.h>一定要在#include <Windows.h>的前面
