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chamerMatching giving error "Debug Assertion failed!"

Hi All,

When I am trying to use chamerMatching getting below error. Please let me know any solutions for this.

Debug Assertion failed! \VC\include\Vector Line 238 Expression:Vector iterators incompatible

Below is the code I used.

int main( int argc, const char** argv ) { string image = "d:\1.jpg"; string templ = "d:\2.jpg";

Mat img = imread(image, CV_LOAD_IMAGE_GRAYSCALE );
Mat tpl = imread(templ, CV_LOAD_IMAGE_GRAYSCALE );
Mat cimg;

if (img.empty() || tpl.empty())
{
    cout << "Could not read image file " << image << " or " << templ << "." << endl;
    return -1;
}


// if the image and the template are not edge maps but normal grayscale images,
// you might want to uncomment the lines below to produce the maps. You can also
// run Sobel instead of Canny.

 Canny(img, img, 5, 50, 3);
 Canny(tpl, tpl, 5, 50, 3);



std::vector<std::vector<cv::Point>> results;

std::vector<float> costs; int best = chamerMatching( img, tpl, results, costs ); if( best < 0 ) { cout << "matching not found" << endl; return -1; }

size_t i, n = results[best].size();
for( i = 0; i < n; i++ )
{
    Point pt = results[best][i];
    if( pt.inside(Rect(0, 0, cimg.cols, cimg.rows)) )
       cimg.at<Vec3b>(pt) = Vec3b(0, 255, 0);
}

imshow("result", cimg);

waitKey(0);

return 0;

}

Thanks, RamKumar.