重映射

 1 #include <opencv2/opencv.hpp>
 2 #include <opencv2/core/core.hpp>
 3 #include <opencv2/highgui/highgui.hpp>
 4 #include<iostream>
 5 #include<stdlib.h>
 6 using namespace cv;
 7 using namespace std;
 8 int main()
 9 {
10     Mat srcImage,dstImage;
11     Mat map_x,map_y;
12     srcImage=imread("E:\\lena.jpg");
13     imshow("srcImage",srcImage);
14     //创建和原始图一样的效果图，X重映射图，Y重映射图
15     dstImage.create(srcImage.size(),srcImage.type());
16     map_x.create(srcImage.size(),CV_32FC1);
17     map_y.create(srcImage.size(),CV_32FC1);
18     //双层循环，遍历每一个像素点，改变map_x,map_y的值
19     for(int j=0;j<srcImage.rows;j++)
20     {
21         for(int i=0;i<srcImage.cols;i++)
22             {
23                 map_x.at<float>(j,i)=static_cast<float>(i);
24                 map_y.at<float>(j,i)=static_cast<float>(srcImage.rows-j);
25         }
26     }
27     //进行重映射操作
28     remap(srcImage,dstImage,map_x,map_y,INTER_LINEAR,BORDER_CONSTANT,Scalar(0,0,0));
29     imshow("cxck",dstImage);
30     waitKey();
31     return 0;
32 
33 }