多线程图像获取并处理

实现了windows下多线程的图像抓取，并后续进行处理。

#include 
#include 
#include 
#include  
#include 

using namespace cv;
using namespace std;

const int  num_thread = 10;
HANDLE  hMutex = NULL;
int count = 0;
VideoCapture capture(0);

//DWORD WINAPI Fun( LPVOID lpParameter ) {
//	int i = 0;
//	while (i<10)
//	{
//		WaitForSingleObject(hMutex,INFINITE);
//		cout << "A Thread is Display" << endl;
//		Sleep(100);
//		ReleaseMutex(hMutex);
//	}
//	return 0L;
//}
//
//int test() {
//	HANDLE hThread = CreateThread(NULL,0,Fun,NULL,0,NULL);
//	hMutex = CreateMutex(NULL,FALSE,"screen");
//
//	CloseHandle(hThread);//释放线程资源 非关闭
//	for (int i = 0; i < num_thread; i++)
//	{
//		WaitForSingleObject(hMutex,INFINITE);
//		cout << "Main Thread Display" << endl;
//		Sleep(100);
//		ReleaseMutex(hMutex);
//	}
//	return 0;
//}


DWORD WINAPI pull_pic (LPVOID lpParameter) {
	Mat frame1;
	while (1)
	{
		//WaitForSingleObject(hMutex, INFINITE);
		capture >> frame1;
		putText(frame1,"test", Point (0,100), FONT_HERSHEY_COMPLEX,1, Scalar(255,0,0),2);

		imshow("test",frame1);
		waitKey(30);
		cout << "test" << endl;

		//putText(Mat& img, const string& text, Point org,
		//	int fontFace, double fontScale, Scalar color,
		//	int thickness = 1, int lineType = 8,
		//	bool bottomLeftOrigin = false);
		//ReleaseMutex(hMutex);
	}
	return 0L;
}
int main()
{
	HANDLE hThread0 = CreateThread(NULL, 0, pull_pic, NULL, 0, NULL);
	//hMutex = CreateMutex(NULL, FALSE, "screen");
	CloseHandle(hThread0);//释放线程资源 非关闭
	HANDLE hThread1 = CreateThread(NULL, 0, pull_pic, NULL, 0, NULL);
	//hMutex = CreateMutex(NULL, FALSE, "screen");
	CloseHandle(hThread1);//释放线程资源 非关闭
	HANDLE hThread = CreateThread(NULL, 0, pull_pic, NULL, 0, NULL);
	//hMutex = CreateMutex(NULL, FALSE, "screen");
	CloseHandle(hThread1);//释放线程资源 非关闭
	HANDLE hThread2 = CreateThread(NULL, 0, pull_pic, NULL, 0, NULL);
	//hMutex = CreateMutex(NULL, FALSE, "screen");
	CloseHandle(hThread2);//释放线程资源 非关闭
	HANDLE hThread3 = CreateThread(NULL, 0, pull_pic, NULL, 0, NULL);
	//hMutex = CreateMutex(NULL, FALSE, "screen");
	CloseHandle(hThread3);//释放线程资源 非关闭

	Mat frame; //定义一个Mat变量，用于存储每一帧的图像
	for (;;)
	{
		capture >> frame; //读取当前帧
		imshow("test", frame); //若当前帧捕捉成功，显示
		waitKey(30); //延时30毫秒
		cout << "main" << endl;

	}
}

程图像的抓取，并可以进行相应的处理。