int main(){ clock_t start,finish; FaceDetector faceDetector; faceDetector.LoadTrainingParams("npd_model_1.mat"); string imgPath = "1.jpg"; Mat img = imread(imgPath); imshow("org",img); IplImage* img_1 ; img_1 = &IplImage(img); start = clock(); faceDetector.Detect(img_1); finish = clock(); double totaltime=(double)(finish-start)/CLOCKS_PER_SEC; cout<<"Time elapsed:"<<totaltime<<endl; Mat rst = Mat(img_1); imshow("rst",rst); waitKey(0); return 0; }