Opencv和Halcon直接有很多資料要轉換，特此記錄

1 字串與HTuple互轉

char *pImageName = "D:/data/temp.png";
HTuple hv_path;
hv_path = (HTuple)(pImageName);
cout << hv_path.S() << endl;
string path = hv_path.S();
cout << path<<endl;

2 double與HTuple互轉

HTuple hv_data;
hv_data = 10.0;
double data = hv_path.D();
cout << data<<endl;
 

3 Mat 與 HObject互轉，這兩個專案經常用，程式碼來自別的部落格，非常感謝。

Mat 轉 HObject

HObject Cpu_halcon_detect::mat_to_hobject(Mat& image)
{
	HObject Hobj = HObject();
	int hgt = image.rows;
	int wid = image.cols;
	int i;
	//  CV_8UC3  
	if (image.type() == CV_8UC3)
	{
		vector<Mat> imgchannel;
		split(image, imgchannel);
		Mat imgB = imgchannel[0];
		Mat imgG = imgchannel[1];
		Mat imgR = imgchannel[2];
		uchar* dataR = new uchar[hgt*wid];
		uchar* dataG = new uchar[hgt*wid];
		uchar* dataB = new uchar[hgt*wid];
		for (i = 0; i < hgt; i++)
		{
			memcpy(dataR + wid*i, imgR.data + imgR.step*i, wid);
			memcpy(dataG + wid*i, imgG.data + imgG.step*i, wid);
			memcpy(dataB + wid*i, imgB.data + imgB.step*i, wid);
		}
		GenImage3(&Hobj, "byte", wid, hgt, (Hlong)dataR, (Hlong)dataG, (Hlong)dataB);
		delete[]dataR;
		delete[]dataG;
		delete[]dataB;
		dataR = NULL;
		dataG = NULL;
		dataB = NULL;
	}
	//  CV_8UCU1  
	else if (image.type() == CV_8UC1)
	{
		uchar* data = new uchar[hgt*wid];
		for (i = 0; i < hgt; i++)
			memcpy(data + wid*i, image.data + image.step*i, wid);
		GenImage1(&Hobj, "byte", wid, hgt, (Hlong)data);
		delete[] data;
		data = NULL;
	}
	return Hobj;
}
 

 HObject 轉 Mat

Mat Cpu_halcon_detect::hobject_to_mat(HObject Hobj)
{
	HTuple htCh = HTuple();
	HTuple cType;
	Mat Image;
	ConvertImageType(Hobj, &Hobj, "byte");
	CountChannels(Hobj, &htCh);
	HTuple wid;
	HTuple hgt;
	int W, H;
	if (htCh[0].I() == 1)
	{
		HTuple ptr;
		GetImagePointer1(Hobj, &ptr, &cType, &wid, &hgt);
		W = (Hlong)wid;
		H = (Hlong)hgt;
		Image.create(H, W, CV_8UC1);
		uchar* pdata = (uchar*)ptr[0].I();
		memcpy(Image.data, pdata, W*H);
	}
	else if (htCh[0].I() == 3)
	{
		HTuple ptrR, ptrG, ptrB;
		GetImagePointer3(Hobj, &ptrR, &ptrG, &ptrB, &cType, &wid, &hgt);
		W = (Hlong)wid;
		H = (Hlong)hgt;
		Image.create(H, W, CV_8UC3);
		vector<Mat> vecM(3);
		vecM[2].create(H, W, CV_8UC1);
		vecM[1].create(H, W, CV_8UC1);
		vecM[0].create(H, W, CV_8UC1);
		uchar* pr = (uchar*)ptrR[0].I();
		uchar* pg = (uchar*)ptrG[0].I();
		uchar* pb = (uchar*)ptrB[0].I();
		memcpy(vecM[2].data, pr, W*H);
		memcpy(vecM[1].data, pg, W*H);
		memcpy(vecM[0].data, pb, W*H);
		merge(vecM, Image);
	}
	return Image;
}