halcon-HObject类型转Mat类型

 

cv::Mat Win::HObject2Mat(HObject Hobj)  //HObject类型转Mat类型
{
    HTuple htCh;
        HString cType;
        cv::Mat Image;
        ConvertImageType(Hobj, &Hobj, "byte");
        CountChannels(Hobj, &htCh);
        Hlong wid = 0;
        Hlong hgt = 0;
        if (htCh[0].I() == 1)
        {
            HImage hImg(Hobj);
            void *ptr = hImg.GetImagePointer1(&cType, &wid, &hgt);//GetImagePointer1(Hobj, &ptr, &cType, &wid, &hgt);
            int W = wid;
            int H = hgt;
            Image.create(H, W, CV_8UC1);
            unsigned char *pdata = static_cast<unsigned char *>(ptr);
            memcpy(Image.data, pdata, W*H);
        }
        else if (htCh[0].I() == 3)
        {
            void *Rptr;
            void *Gptr;
            void *Bptr;
            HImage hImg(Hobj);
            hImg.GetImagePointer3(&Rptr, &Gptr, &Bptr, &cType, &wid, &hgt);
            int W = wid;
            int H = hgt;
            Image.create(H, W, CV_8UC3);
            std::vector<cv::Mat> VecM(3);
            VecM[0].create(H, W, CV_8UC1);
            VecM[1].create(H, W, CV_8UC1);
            VecM[2].create(H, W, CV_8UC1);
            unsigned char *R2 = (unsigned char *)Rptr;
            unsigned char *G = (unsigned char *)Gptr;
            unsigned char *B = (unsigned char *)Bptr;
            memcpy(VecM[2].data, R2, W*H);
            memcpy(VecM[1].data, G, W*H);
            memcpy(VecM[0].data, B, W*H);
            cv::merge(VecM, Image);
        }
        return Image;
}