OpenCV实现最小外接正矩形的代码示例-创新互联

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这篇文章主要讲解了OpenCV实现最小外接正矩形的代码示例，内容清晰明了，对此有兴趣的小伙伴可以学习一下，相信大家阅读完之后会有帮助。

#include "stdafx.h" 
#include "cv.h"
#include "highgui.h" 
#include "cxcore.h"
#include "math.h" 
#include 
int main(int argc, char* argv[])
 
{  
 
 IplImage *src; 
 IplImage *dst;
 IplImage *ROI;
 CvMemStorage* storage=cvCreateMemStorage(0); 
 CvSeq* contour=0; 
 src=cvLoadImage("I:\\test.jpg",0);
 cvNamedWindow("image0",1);
 cvShowImage("image0",src);
 
 int  hei=src->height;
 int wid=src->width; 
 uchar *data;
 data=(uchar*)src->imageData;
 int widstep=src->widthStep;
 int channel=src->nChannels;
 dst=cvCreateImage(cvSize(wid,hei),IPL_DEPTH_8U,3);
 ROI=cvCreateImage(cvSize(wid,hei),IPL_DEPTH_8U,3);
 
 for (int i=0;i120)
 
    {
 
      data[i*widstep+j*channel]=0;
 
    }
 
    else
 
    {
 
      data[i*widstep+j*channel]=255;
 
    }
 
   }
 
 }
 
 cvNamedWindow("image",0); 
 cvShowImage("image",src); 
 printf("图像的高为：%d,宽为：%d\n\n",hei,wid); 
 cvCvtColor(src, dst, CV_GRAY2BGR);;
cvFindContours(src,storage,&contour,sizeof(CvContour),CV_RETR_CCOMP,CV_CHAIN_APPROX_SIMPLE); 
 for(;contour!=0;contour=contour->h_next) 
 
 {
 
   double length =cvArcLength(contour); 
   double area =fabs(cvContourArea(contour)); 
   CvRect rect = cvBoundingRect(contour,1); 
   cout<<"Length="<            

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