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

2013-06-02 20:34
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OpenCV数字图像处理（19）




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/*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;

}



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