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

241aa6e5 · Alexander Smorkalov · OpenCV Buildbot · c6ab8cb6 · e675684c · 241aa6e5
Commit 241aa6e5 authored Sep 26, 2013 by Alexander Smorkalov Committed by OpenCV Buildbot Sep 26, 2013
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circlesgrid.cpp modules/calib3d/src/circlesgrid.cpp +3 -0

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--- 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++)
  {