OpenCV学习：Mat矩阵合并两张图像_cv::mat 两图拼接

学习OpenCV有一段时间，总结一下，以备忘。

#include "opencv2/core/core.hpp"
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/imgproc/imgproc.hpp"
 
using namespace cv;
 
int main(int argc, char **argv)
{
	Mat img_left = imread("church01.jpg");
	Mat img_right = imread("church02.jpg");
 
	Size size(img_left.cols + img_right.cols, MAX(img_left.rows, img_right.rows));
 
	Mat img_merge;
	Mat outImg_left, outImg_right;
 
	img_merge.create(size, CV_MAKETYPE(img_left.depth(), 3));
	img_merge = Scalar::all(0);
	outImg_left = img_merge(Rect(0, 0, img_left.cols, img_left.rows));
	outImg_right = img_merge(Rect(img_left.cols, 0, img_right.cols, img_right.rows));
 
	if(img_left.type() == CV_8U)
	{
		cvtColor(img_left, outImg_left, CV_GRAY2BGR);
	}
	else
	{
		img_left.copyTo(outImg_left);
	}
 
	if(img_right.type() == CV_8U)
	{
		cvtColor(img_right, outImg_right, CV_GRAY2BGR);
	}
	else
	{
		img_right.copyTo(outImg_right);
	}
 
	imshow("merge", img_merge);
	imwrite("merge.jpg", img_merge);
 
	waitKey(0);
	return 0;
}

 

练习用的图像分别为

church01.jpg：

 

church02.jpg：

 

运行得到的结果为：