OpenCV数字图像处理六：图像垂直翻转

OpenCV数字图像处理六：图像垂直翻转

版权声明：本文为博主原创文章，未经博主允许不得转载。欢迎交流，QQ：896922782，微信：15058133936

/*OpenCV2.4.3*/ 
 


 #include "stdafx.h"  
 #include "opencv2/highgui/highgui.hpp"  
 #include "opencv2/imgproc/imgproc.hpp"  
 #include <iostream>  
 #include <stdio.h>  


 using namespace cv;  


 /// Global variables  
 Mat src, dst;  


 Mat map_x, map_y;  


 char* remap_window = "RotateImage";  


 int ind = 0;  


 /// Function Headers  
 void update_map( void );  


 int main( int argc, char** argv )  
 {  
/// Load the image  
src = imread("test.jpg");  


/// Create dst, map_x and map_y with the same size as src:  
dst.create( src.size(), src.type() );  
map_x.create( src.size(), CV_32FC1 );  
map_y.create( src.size(), CV_32FC1 );  


/// Create window  
namedWindow( remap_window, CV_WINDOW_AUTOSIZE );  


/// Update map_x & map_y. Then apply remap  
for( int j = 0; j < src.rows; j++ ){   
for( int i = 0; i < src.cols; i++ ){    
map_x.at<float>(j,i) = src.cols - i ;  
map_y.at<float>(j,i) = src.rows - j ;    
}  
}  


remap( src, dst, map_x, map_y, CV_INTER_LINEAR, BORDER_CONSTANT, Scalar(0,0, 0) );  


/// Display results  
imshow( remap_window, dst );  
imwrite("rotateImage.jpg",dst);  
cv::waitKey(0);  
return 0;  
 }