Question

opencv中matchShapes使用的问题

vector<Point> c1;
c1.push_back(Point(10,20));
c1.push_back(Point(20,23));
c1.push_back(Point(30,23));
vector<Point> c2;
c2.push_back(Point(101,20));
c2.push_back(Point(20,231));
c2.push_back(Point(30,223));
//c2.push_back(Point(130,223));

double mm=matchShapes(c1,c2,0,0);为什么matchShapes总是报错？？？？？？？

Answer 1

matchShapes的参数问题……第三个参数是1,2,3中的一个，具体参见
http://docs.opencv.org/modules/imgproc/doc/structural_analysis_and_shape_descriptors.html?highlight=matchshapes#cv2.matchShapes

method – Comparison method: CV_CONTOURS_MATCH_I1 , CV_CONTOURS_MATCH_I2 or CV_CONTOURS_MATCH_I3 (see the details below).

Answer 2

matchShapes的输入参数是contours或者灰度图，楼主给的是两个point的vector，肯定会报错。。。