OpenCV 直方图均衡化

 1 #include "opencv2/highgui/highgui.hpp"
 2 #include "opencv2/imgproc/imgproc.hpp"
 3 #include <iostream>
 4 #include <stdio.h>
 5 
 6 using namespace cv;
 7 using namespace std;
 8 
 9 /**  @function main */
10 int main( int argc, char** argv )
11 {
12   Mat src, dst;
13 
14   char* source_window = "Source image";
15   char* equalized_window = "Equalized Image";
16 
17   /// 加载源图像
18   src = imread( argv[1], 1 );
19 
20   if( !src.data )
21     { cout<<"Usage: ./Histogram_Demo <path_to_image>"<<endl;
22       return -1;}
23 
24   /// 转为灰度图
25   cvtColor( src, src, CV_BGR2GRAY );
26 
27   /// 应用直方图均衡化
28   equalizeHist( src, dst );
29 
30   /// 显示结果
31   namedWindow( source_window, CV_WINDOW_AUTOSIZE );
32   namedWindow( equalized_window, CV_WINDOW_AUTOSIZE );
33 
34   imshow( source_window, src );
35   imshow( equalized_window, dst );
36 
37   /// 等待用户按键退出程序
38   waitKey(0);
39 
40   return 0;
41 }