Having some difficulty in image stitching using OpenCV

Question

I\'m currently working on Image stitching using OpenCV 2.3.1 on Visual Studio 2010, but I\'m having some trouble.

Problem Description I\'m trying to wri

Answer 1

I have been working lately on image registration. My algorithm takes two images, calculates the SURF features, find correspondences, find homography matrix and then stitch both images together, I did it with the next code:

void stich(Mat base, Mat target,Mat homography, Mat& panorama){


Mat corners1(1, 4,CV_32F);
Mat corners2(1,4,CV_32F);
Mat corners(1,4,CV_32F);
vector planes;
/* compute corners 
of warped image
*/
corners1.at(0,0)=0;
corners2.at(0,0)=0;
corners1.at(0,1)=0;
corners2.at(0,1)=target.rows;
corners1.at(0,2)=target.cols;
corners2.at(0,2)=0;
corners1.at(0,3)=target.cols;
corners2.at(0,3)=target.rows;

planes.push_back(corners1);
planes.push_back(corners2);

merge(planes,corners);

perspectiveTransform(corners, corners, homography);

/* compute size of resulting 
image and allocate memory
*/
double x_start = min( min( (double)corners.at(0,0)[0], (double)corners.at (0,1)[0]),0.0);
double x_end   = max( max( (double)corners.at(0,2)[0], (double)corners.at(0,3)[0]), (double)base.cols);
double y_start = min( min( (double)corners.at(0,0)[1], (double)corners.at(0,2)[1]), 0.0);
double y_end   = max( max( (double)corners.at(0,1)[1], (double)corners.at(0,3)[1]), (double)base.rows);

/*Creating image
with same channels, depth
as target
and proper size
*/
panorama.create(Size(x_end - x_start + 1, y_end - y_start + 1), target.depth());

planes.clear();

/*Planes should
have same n.channels
as target
*/
for (int i=0;i(0,0)=1;
T.at(1,1)=1;
T.at(2,2)=1;
T.at(0,2)=-x_start;
T.at(1,2)=-y_start;

// copy base image to correct position within output image

 warpPerspective(base, panorama, T,panorama.size(),INTER_LINEAR| CV_WARP_FILL_OUTLIERS);
 // change homography to take necessary translation into account
gemm(T, homography,1,T,0,T);
    // warp second image and copy it to output image
warpPerspective(target,panorama, T, panorama.size(),INTER_LINEAR);
 //tidy
corners.release();
T.release();

}

Any question I will try