实现opencv图像裁剪分屏显示示例

//#include "stdafx.h"
#include <opencv2/opencv.hpp>

//#include <opencv2/imgproc/imgproc.hpp>
//#include <opencv2/highgui/highgui.hpp>
#include <iostream>
#include <vector>
using namespace std;
using namespace cv;

//剪切图片为m * n 块
void Cut_img(Mat src_img,int m,int n,Vector<Mat> ceil_img)
{

int t = m * n;
int height = src_img.rows;
int width = src_img.cols;

int ceil_height = height/m;
int ceil_width = width/n;

Mat roi_img,tmp_img;

Point p1,p2;
for(int i = 0;i<m;i++)
for(int j = 0;j<n;j++){
//p1 =
Rect rect(i+j*ceil_width,j+i*ceil_height,ceil_width,ceil_height);

src_img(rect).copyTo(roi_img);

ceil_img.push_back(roi_img);
imshow("roi_img",roi_img);
//rectangle(i+j*ceil_width,j+i*ceil_height,);
}
waitKey(0);
}

void show_images(Vector<Mat> imgs,int n){

//do something
}

int main()
{
Mat img = imread("airplane.jpg",1);
imshow("src img",img);
int m = 3;
int n = 3;
Vector<Mat> ceil_img = m*n;

Cut_img(img,m,n,ceil_img);

waitKey();
return 0;
}

编译命令： g++ -ggdb `pkg-config –cflags opencv` -o ImageTake ImageTake.cpp `pkg-config –libs opencv`;