c++ - OpenCV Unhandled Exception at 0x1050FBFE (opencv_world300.dll) -


**** ~~> updated <~~ **

hi, following error code below:

(my aim find special image on list of images called template matching. add opencv_world300 debug , release in visual studio 2012 don't know what's causing error)

unhandled exception @ 0x01ddabba (opencv_world300.dll) in opencv.exe: 0xc0000005: access violation reading location 0x0000fb97

error screen shot

#include <opencv2/imgproc/imgproc.hpp> #include <opencv2/highgui/highgui.hpp>  void fastmatchtemplate(cv::mat& srca,   cv::mat& srcb,   cv::mat& dst,   int  maxlevel)    { std::vector<cv::mat> refs, tpls, results;  cv::buildpyramid(srca, refs, maxlevel); cv::buildpyramid(srcb, tpls, maxlevel);  cv::mat ref, tpl, res;  (int level = maxlevel; level >= 0; level--) {     ref = refs[level];     tpl = tpls[level];     res = cv::mat::zeros(ref.size() + cv::size(1,1) - tpl.size(), cv_32fc1);      if (level == maxlevel)     {          cv::matchtemplate(ref, tpl, res, cv_tm_ccorr_normed);     }     else     {          cv::mat mask;         cv::pyrup(results.back(), mask);          cv::mat mask8u;         mask.convertto(mask8u, cv_8u);           std::vector<std::vector<cv::point> > contours;         cv::findcontours(mask8u, contours, cv_retr_external,    cv_chain_approx_none);           (int = 0; < contours.size(); i++)         {             cv::rect r = cv::boundingrect(contours[i]);             cv::matchtemplate(                 ref(r + (tpl.size() - cv::size(1,1))),                  tpl,                  res(r),                  cv_tm_ccorr_normed             );         }     }      // keep matches     cv::threshold(res, res, 0.94, 1., cv_thresh_tozero);     results.push_back(res); }  res.copyto(dst); }  int main() { cv::mat ref = cv::imread("g:\\reference.png"); cv::mat tpl = cv::imread("g:\\template.png"); if (ref.empty() || tpl.empty())     return -1;  cv::mat ref_gray, tpl_gray; cv::cvtcolor(ref, ref_gray, cv_bgr2gray); cv::cvtcolor(tpl, tpl_gray, cv_bgr2gray);  cv::mat dst; fastmatchtemplate(ref_gray, tpl_gray, dst, 2);  while (true) {     double minval, maxval;     cv::point minloc, maxloc;     cv::minmaxloc(dst, &minval, &maxval, &minloc, &maxloc);      if (maxval >= 0.9)     {         cv::rectangle(             ref, maxloc,              cv::point(maxloc.x + tpl.cols, maxloc.y + tpl.rows),              cv_rgb(0,255,0), 2         );         cv::floodfill(             dst, maxloc,              cv::scalar(0), 0,              cv::scalar(.1),              cv::scalar(1.)         );     }     else         break; }  cv::imshow("result", ref); cv::waitkey(); return 0; }

thanks help!


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