c语言通过opencv实现轮廓处理与切割

注意在寻找轮廓时要选择中寻找外层轮廓

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									RETR_EXTERNAL

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									#include "opencv/cv.h" 

									#include "opencv/highgui.h" 

									using namespace std; 

									using namespace cv; 

									int main() 

									{ 

									Mat srcimg=imread("./22.jpg"); 

									Mat dst; 

									cvtColor(srcimg,dst,CV_BGR2GRAY); 

									threshold(dst,dst,120,255,1); 

									vector<vector<Point> > edgepoint; 

									vector<Vec4i> lclass; 

									findContours(dst,edgepoint,lclass,RETR_EXTERNAL,CHAIN_APPROX_NONE,Point()); 

									Mat mat[edgepoint.size()]; 

									for(int i=0;i<edgepoint.size();i++) 

									{ 

									 Rect rec=boundingRect(Mat(edgepoint[i])); 

									 mat[i]=dst(rec);  

									rectangle(dst,rec,Scalar(100,80,90),1,1,0);  

									 drawContours(dst,edgepoint,i,Scalar(200),1,8,lclass); 

									 string str=to_string(i); 

									 imshow(str,mat[i]); 

									} 

									imshow("tt",dst); 

									cout<<edgepoint.size()<<endl; 

									waitKey(0); 

									}