VC++联合HALCON多线程处理图像

本文，通过实际代码演示图像的多线程处理，以下为具体的流程。

#define THREAD_CNT 60//定义一个常量，它要比线程的个数还要大
CEvent eFaceProcThread[THREAD_CNT];
static UINT FaceProcThread(LPVOID lParam)
{
    POUTPUTDATA pParam = (POUTPUTDATA)lParam;
    //处理图像，这里是基于形状的模板匹配找到对应位置，再把模板仿射到找到的位置保存到ho_RegionAffineTrans
    PartialRegional(
        pParam->ho_Image,
        pParam->ho_ObjectSelected,
        pParam->ho_RegionUnion,
        &pParam->ho_RegionAffineTrans,
        pParam->hv_ModelID);
    eFaceProcThread[pParam->Index].SetEvent();
    return 0;
}

int ResistanceFind(HObject  ho_Image,
    PINPUTDATA pInputData,POUTPUTDATA pOutputData)
{
    // Local iconic variables
    HObject  ho_RegionErosion, ho_RegionUnion;
    HObject  ho_ObjectSelected;

    // Local control variables
    HTuple  hv_Width, hv_Height, hv_WindowHandle;
    HTuple  hv_Number, hv_ModelID, hv_Area, hv_Row1, hv_Column1;

    BlobDemo(ho_Image, &ho_RegionErosion, &ho_RegionUnion, &hv_Number, &hv_ModelID);
    AreaCenter(ho_RegionUnion, &hv_Area, &hv_Row1, &hv_Column1);
    {
        int end_num = hv_Number;

        OUTPUTDATA stOutputData[THREAD_CNT];//结构体

        for(int i = 0; i < end_num;i++)
        {
            //BLOB分析获取单个识别区域
            SelectObj(ho_RegionErosion, &ho_ObjectSelected, i+1);
            stOutputData[i].Index = i;//第几个数据
            stOutputData[i].ho_Image = ho_Image;//原图
            stOutputData[i].ho_ObjectSelected = ho_ObjectSelected;//单个线程要处理的区域
            stOutputData[i].ho_RegionUnion = ho_RegionUnion;//模板轮廓，在匹配获得区域后，就可以把模板轮廓仿射盖上去
            stOutputData[i].hv_ModelID = hv_ModelID;//模板ID
            GenEmptyObj (&stOutputData[i].ho_EmptyObject);//新建一个空数据
            //打开线程，由于是循环开线程故这里会是多线程
            AfxBeginThread(FaceProcThread,&stOutputData[i],THREAD_PRIORITY_IDLE,0,0);
        }
        //遍历等待线程实行完成
        for(int j = 0; j < end_num;j++)
        {
            WaitForSingleObject(eFaceProcThread[j].m_hObject,-1);
        }
        HObject ho_EmptyObject;
        GenEmptyObj(&ho_EmptyObject);//新建一个空数据
        //遍历把各线程找到的区域合并到ho_EmptyObject
        for(int j = 0; j < end_num;j++)
        {
            ConcatObj(ho_EmptyObject, stOutputData[j].ho_RegionAffineTrans, &ho_EmptyObject);
        }
        DispObj(ho_EmptyObject, pOutputData->hWndID);//显示通过多线程找到的区域
    }
    return 0;
}