OpenCV和Halcon之间有很多数据要转换，特此记录
1 字符串与HTuple互转
1 char *pImageName = "D:/data/temp.png"; 2 HTuple hv_path; 3 hv_path = (HTuple)(pImageName); 4 cout << hv_path.S() << endl; 5 string path = hv_path.S(); 6 cout << path<<endl;
2 double与HTuple互转
1 HTuple hv_data; 2 hv_data = 10.0; 3 double data = hv_path.D(); 4 cout << data<<endl;
3 Mat 与 HObject互转，这两个项目经常用，代码来自别的博客，非常感谢。
Mat 转 HObject
1 HObject Cpu_halcon_detect::mat_to_hobject(Mat& image) 2 { 3 HObject Hobj = HObject(); 4 int hgt = image.rows; 5 int wid = image.cols; 6 int i; 7 // CV_8UC3
8 if (image.type() == CV_8UC3) 9 { 10 vector<Mat> imgchannel; 11 split(image, imgchannel); 12 Mat imgB = imgchannel[0]; 13 Mat imgG = imgchannel[1]; 14 Mat imgR = imgchannel[2]; 15 uchar* dataR = new uchar[hgt*wid]; 16 uchar* dataG = new uchar[hgt*wid]; 17 uchar* dataB = new uchar[hgt*wid]; 18 for (i = 0; i < hgt; i++) 19 { 20 memcpy(dataR + wid*i, imgR.data + imgR.step*i, wid); 21 memcpy(dataG + wid*i, imgG.data + imgG.step*i, wid); 22 memcpy(dataB + wid*i, imgB.data + imgB.step*i, wid); 23 } 24 GenImage3(&Hobj, "byte", wid, hgt, (Hlong)dataR, (Hlong)dataG, (Hlong)dataB); 25 delete[]dataR; 26 delete[]dataG; 27 delete[]dataB; 28 dataR = NULL; 29 dataG = NULL; 30 dataB = NULL; 31 } 32 // CV_8UCU1
33 else if (image.type() == CV_8UC1) 34 { 35 uchar* data = new uchar[hgt*wid]; 36 for (i = 0; i < hgt; i++) 37 memcpy(data + wid*i, image.data + image.step*i, wid); 38 GenImage1(&Hobj, "byte", wid, hgt, (Hlong)data); 39 delete[] data; 40 data = NULL; 41 } 42 return Hobj; 43 }
HObject 转 Mat
1 Mat Cpu_halcon_detect::hobject_to_mat(HObject Hobj) 2 { 3 HTuple htCh = HTuple(); 4 HTuple cType; 5 Mat Image; 6 ConvertImageType(Hobj, &Hobj, "byte"); 7 CountChannels(Hobj, &htCh); 8 HTuple wid; 9 HTuple hgt; 10 int W, H; 11 if (htCh[0].I() == 1) 12 { 13 HTuple ptr; 14 GetImagePointer1(Hobj, &ptr, &cType, &wid, &hgt); 15 W = (Hlong)wid; 16 H = (Hlong)hgt; 17 Image.create(H, W, CV_8UC1); 18 uchar* pdata = (uchar*)ptr[0].I(); 19 memcpy(Image.data, pdata, W*H); 20 } 21 else if (htCh[0].I() == 3) 22 { 23 HTuple ptrR, ptrG, ptrB; 24 GetImagePointer3(Hobj, &ptrR, &ptrG, &ptrB, &cType, &wid, &hgt); 25 W = (Hlong)wid; 26 H = (Hlong)hgt; 27 Image.create(H, W, CV_8UC3); 28 vector<Mat> vecM(3); 29 vecM[2].create(H, W, CV_8UC1); 30 vecM[1].create(H, W, CV_8UC1); 31 vecM[0].create(H, W, CV_8UC1); 32 uchar* pr = (uchar*)ptrR[0].I(); 33 uchar* pg = (uchar*)ptrG[0].I(); 34 uchar* pb = (uchar*)ptrB[0].I(); 35 memcpy(vecM[2].data, pr, W*H); 36 memcpy(vecM[1].data, pg, W*H); 37 memcpy(vecM[0].data, pb, W*H); 38 merge(vecM, Image); 39 } 40 return Image; 41 }