MVS相机通讯

MVS相机通讯一般使用的是GigE Vision接口，也有部分相机支持USB3.0接口。通常需要使用相应的SDK来实现相机的控制与图像采集。常见的SDK有MVTec Halcon、Cognex VisionPro等。以下是一个基于MVTec Halcon SDK的示例程序，可以实现相机的连接与图像采集：

#include "HalconCpp.h"
#include "HDevThread.h"
#include <iostream>

using namespace HalconCpp;
using namespace std;

int main(int argc, char* argv[])
{
    // 创建相机对象
    HImage img;
    HInterface interface;
    HDevice device;
    HTuple info, width, height, name, type, access;

    try {
        // 连接相机
        interface.Open("GigEVision", 0, 0, 0, &info);
        OpenFramegrabber("GigEVision", 0, 0, 0, 0, 0, 0, "default", -1, "default", -1, "false", "default", interface, &device);

        // 获取相机参数
        GetFramegrabberParam(device, "Width", &width);
        GetFramegrabberParam(device, "Height", &height);
        GetFramegrabberParam(device, "Device", &name);
        GetFramegrabberParam(device, "PixelFormat", &type);
        GetFramegrabberParam(device, "AccessMode", &access);

        // 设置相机参数
        SetFramegrabberParam(device, "AcquisitionMode", "Continuous");
        SetFramegrabberParam(device, "TriggerMode", "Off");

        // 启动相机采集
        GrabImageStart(device, -1);

        while (true) {
            // 采集图像
            GrabImageAsync(&img, device, -1);

            // 处理图像
            // ...

            // 显示图像
            DispObj(img, WindowHandle("Image"));

            // 检查键盘输入，按ESC键退出程序
            if (HDevWindowStack::IsOpen()) {
                if (HDevWindowStack::GetKey() == "e") {
                    throw HException("User canceled!");
                }
            }
        }

        // 关闭相机
        CloseFramegrabber(device);
        interface.Close();
    }
    catch (HException& e) {
        cout << "Error: " << e.ErrorMessage() << endl;
    }

    return 0;
}