Merge pull request #1497 from jet47:fix-bug-3277

12 years ago · 241aa6e5a8
parent c6ab8cb6ee e675684c81
commit 241aa6e5a8
1 changed files with 3 additions and 0 deletions
--- a/modules/calib3d/src/circlesgrid.cpp
+++ b/modules/calib3d/src/circlesgrid.cpp
@ -836,6 +836,9 @@ Mat CirclesGridFinder::rectifyGrid(Size detectedGridSize, const std::vector<Poin
  Mat H = findHomography(Mat(centers), Mat(dstPoints), RANSAC);
  //Mat H = findHomography( Mat( corners ), Mat( dstPoints ) );

+  if (H.empty())
+      H = Mat::zeros(3, 3, CV_64FC1);
+
  std::vector<Point2f> srcKeypoints;
  for (size_t i = 0; i < keypoints.size(); i++)
  {