【数字图像处理】1.1:灰度级

#define K 1 //灰度级别
#define STEP (256/(1<<K))
int main(){
  //char name[50];
  IplImage * image = cvLoadImage("e:\\OpenCV_Image\\airplane.jpg",0);
  //IplImage * result = cvCreateImage(cvGetSize(image),8,1);
  cvNamedWindow("原图");
  cvNamedWindow("变换");
  cvShowImage("原图",image);
  for(int i=0;i<image->width;i++)
    for(int j=0;j<image->height;j++){
      int value=cvGetReal2D(image,i,j);
      int step=STEP;
      while(value>step){
      	step+=STEP;
    }
  value=step;
  cvSetReal2D(image,i,j,value);
  }
  cvShowImage("变换",image);
  //sprintf(name,"%s%d%s","e:\\OpenCV_Image\\airplane_",K,".jpg");
  //cvSaveImage(name,image);
  cvWaitKey();
  cvReleaseImage(&image);
  return 0;

}