如何合并两个图像在opencv？ [英] How to merge two images in opencv?

问题描述

我已经计算单应性，取出透视变换。我可以在一个窗口中显示两个图像，但无法合并它们。这是我的示例图像 - >

I have calculated homography ,taken out perspective transform .I am able two display two images in one window but unable to merge them.Here are my example images->

我使用的代码 - >

The code I am using thiscode ->

cv::warpPerspective(image2,warpresult2,homography,cv::Size(2*image2.cols,image2.rows));


Mat imgResult(image1.rows,2*image1.cols,image1.type());

Mat roiImgResult_Left = imgResult(Rect(0,0,image1.cols,image1.rows)); 
Mat roiImgResult_Right = imgResult(Rect(image1.cols,0,image2.cols,image2.rows)); 

Mat roiImg1 = image1(Rect(0,0,image1.cols,image1.rows));
Mat roiImg2 = warpresult2(Rect(0,0,image2.cols,image2.rows));

roiImg1.copyTo(roiImgResult_Left); //Img1 will be on the left of imgResult
roiImg2.copyTo(roiImgResult_Right); //Img2 will be on the right of imgResult

imshow("Finalimg",imgResult);
imwrite("C:\\OpenCv_Projects\\outputimage.jpg",imgResult);
cvWaitKey(0);

我认为问题出在我给roiImgResult_right的坐标。

I think the problem is in the coordinates that i am giving roiImgResult_right.

输出图像是 - >
$ b $

And the Output Image is -> As you can see the images are not properly merge and there is black area on the right side.how to remove that also?

推荐答案

p> OpenCV已经实现了图像拼接。如果使用-D BUILD_EXAMPLES编译，可以使用二进制 stitching_detailed 。用法很简单： ./ stitching_detailed img1 img2 ...

或者，你可以使用stitcher类（来自此处的示例）： p>

Or, you can just use the stitcher class (example from here):

#include "opencv2/highgui/highgui.hpp"
#include "opencv2/stitching/stitcher.hpp"

using namespace std;
using namespace cv;

bool try_use_gpu = false;
string result_name = "result.jpg";

int main(int argc, char* argv[])
{
    vector<Mat> imgs;
    // add images...

    Mat pano;
    Stitcher stitcher = Stitcher::createDefault(try_use_gpu);
    stitcher.stitch(imgs, pano);
    imwrite(result_name, pano);
}

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