轮廓4

#include "cv.h"
 
#include "highgui.h"
 
#include "cxcore.h"
 
#include 
 
#include 
 


int main( int argc, char** argv )
 
{
 
    int i, j;
 

    CvMemStorage* storage = cvCreateMemStorage(0);
 
    IplImage* img = cvLoadImage("f:\\vc\\cv\\qq.png",CV_LOAD_IMAGE_GRAYSCALE);
 
        IplImage* imgColor = cvCreateImage(cvGetSize(img),8,3);
 
        IplImage* contoursImage = cvCreateImage(cvSize(img->width,img->height),8,1);
 
        
 
        CvSeq* contours = 0 , *contoursTemp=0;
 
        cvZero(contoursImage);
 

        //对图像进行二值化
 
        cvThreshold(img,img,100,255,CV_THRESH_BINARY);
 

        //img的备份
 
        cvCvtColor(img,imgColor,CV_GRAY2BGR);
 





        // 提取图像img的轮廓信息 contours指向第一个轮廓
 
    int total = cvFindContours( img, storage, &contours, sizeof(CvContour),
 
                    CV_RETR_CCOMP, CV_CHAIN_APPROX_NONE, cvPoint(0,0) );
 




        contoursTemp = contours ;
 

        int count=0;
 

        //对轮廓进行循环
 
        for(;contoursTemp!=0 ; contoursTemp=contoursTemp->h_next)
 
        {
 
                //提取外轮廓 上的所以坐标点
 
                for( i=0; itotal; i++)
 
                {
 
                        CvPoint * pt = (CvPoint*)cvGetSeqElem(contoursTemp, i); // 读出第i个点。
 

                        cvSetReal2D(contoursImage , pt->y , pt->x , 255.0);
 
                        cvSet2D(imgColor,pt->y,pt->x,cvScalar(0,0,255,0));
 

                }
 
                count++;
 

                //提取内轮廓上的所以坐标点
 
                CvSeq* InterCon = contoursTemp->v_next;
 
                for(;InterCon!=0;InterCon=InterCon->h_next)
 
                {
 
                        for(i=0;itotal;i++)
 
                        {
 
                                CvPoint * pt = (CvPoint*)cvGetSeqElem(InterCon, i); // 读出第i个点。
 

                                cvSetReal2D(contoursImage , pt->y , pt->x , 255.0);
 
                                cvSet2D(imgColor,pt->y,pt->x,cvScalar(0,255,0,0));
 

                        }
 

                }
 
                
        
 
        }
 

        cvNamedWindow( "image", 1 );
 
    cvShowImage( "image", imgColor );
 

    cvNamedWindow( "contours");
 
        cvShowImage("contours",contoursImage);
 

    cvWaitKey(0);
 

    cvReleaseMemStorage( &storage );
 
    cvReleaseImage( &img );
 
        cvReleaseImage(&contoursImage);
 
        cvReleaseImage(&imgColor);
 

    return 0;
 
}