OpenCV分离RGB像素

OpenCV分离RGB像素

OpenCV分离RGB像素

#include<highgui.h>
#include<cxcore.h>
int main(){
 IplImage *img=cvLoadImage("Baboon.jpg",1);
 //void cvSplit( const CvArr* src, CvArr* dst0, CvArr* dst1, CvArr* dst2, CvArr* dst3 );
 //IplImage *r,*g,*b,*alpha;
 int num=3;
 int i=0;
 char *window[3]={"b","g","r"};
 char *name[3]={"b.jpg","g.jpg","r.jpg"};
 IplImage *subGrayImage[3];
 IplImage *subColorImage[3];
 for(i=0;i<3;i++)
 {
  subGrayImage[i]=cvCreateImage(cvGetSize(img),IPL_DEPTH_8U,1); 
  subColorImage[i]=cvCreateImage(cvGetSize(img),IPL_DEPTH_8U,3); 
 }
 cvSplit(img,subGrayImage[0],subGrayImage[1],subGrayImage[2],0);
 cvNamedWindow("example",1);
 cvShowImage("example", img);
 for(i=0;i<3;i++)cvZero(subColorImage[i]);
 
 cvMerge(subGrayImage[0],0,0,0,subColorImage[0]);
 cvMerge(0,subGrayImage[0],0,0,subColorImage[1]);
 cvMerge(0,0,subGrayImage[0],0,subColorImage[2]);
 for(i=0;i<3;i++){
  cvSaveImage(name[i],subColorImage[i],NULL);
 }
 for(i=0;i<3;i++){
  cvNamedWindow(window[i],1);
  cvShowImage(window[i], subColorImage[i]); 
 } 
 cvWaitKey(0);
 cvReleaseImage(&img);
 cvDestroyWindow("example");
 for(i=0;i<3;i++){
  cvReleaseImage(&subGrayImage[i]);
  cvReleaseImage(&subColorImage[i]);
  cvDestroyWindow(window[i]);
 }

}