《学习 OpenCV》 第六章 练习16

#include <QCoreApplication>
#include <QDebug>
#include "opencv/highgui.h"
#include "opencv/cvaux.h"

int main(int argc, char *argv[])
{
  CvSize sz;

  IplImage* img1 = cvLoadImage("Tulips.jpg");

  sz.height = img1->height;
  sz.width = img1->width;
  IplImage* img2r = cvCreateImage(sz,IPL_DEPTH_8U,1);
  IplImage* img2g = cvCreateImage(sz,IPL_DEPTH_8U,1);
  IplImage* img2b = cvCreateImage(sz,IPL_DEPTH_8U,1);
  cvSplit(img1,img2r,img2g,img2b,NULL);

  cvEqualizeHist(img2r,img2r);
  cvEqualizeHist(img2g,img2g);
  cvEqualizeHist(img2b,img2b);

  IplImage* img3 = cvCloneImage(img1);
  cvMerge(img2r,img2g,img2b,NULL,img3);

  cvNamedWindow("Win1",CV_WINDOW_AUTOSIZE);
  cvNamedWindow("Win2r",CV_WINDOW_AUTOSIZE);
  cvNamedWindow("Win2g",CV_WINDOW_AUTOSIZE);
  cvNamedWindow("Win2b",CV_WINDOW_AUTOSIZE);
  cvNamedWindow("Win3",CV_WINDOW_AUTOSIZE);

  cvShowImage("Win1",img1);
  cvShowImage("Win2r",img2r);
  cvShowImage("Win2g",img2g);
  cvShowImage("Win2b",img2b);
  cvShowImage("Win3",img3);

  cvSaveImage("img3.jpg",img3);

  cvWaitKey(0);

  return 5;

  Q_UNUSED(argc)
  Q_UNUSED(argv)
}

 

对一幅整体较暗淡的彩色图像分别抽取RGB三个通道进行直方图均衡化，然后再合并。发现结果图像的色彩在各个基色通道都均衡化后的合并结果，效果在视觉上有所优化，但还存在一些蓝斑，应该是数据信息细节不足导致。