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Fixed a bug related to video stabilization crashes with a blank video (Bug #3023)

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This commit is contained in:
Ivan Korolev 2013-06-13 13:41:43 +04:00
parent 98f6a4a615
commit de4c3f0178
1 changed files with 5 additions and 0 deletions
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5
modules/videostab/src/global_motion.cpp
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@ -205,6 +205,9 @@ Mat estimateGlobalMotionRobust(
estimateGlobMotionLeastSquaresAffine }; estimateGlobMotionLeastSquaresAffine };
const int npoints = static_cast<int>(points0.size()); const int npoints = static_cast<int>(points0.size());
if (npoints < params.size)
return Mat::eye(3, 3, CV_32F);
const int niters = static_cast<int>(ceil(log(1 - params.prob) / const int niters = static_cast<int>(ceil(log(1 - params.prob) /
log(1 - pow(1 - params.eps, params.size)))); log(1 - pow(1 - params.eps, params.size))));
@ -300,6 +303,8 @@ PyrLkRobustMotionEstimator::PyrLkRobustMotionEstimator()
Mat PyrLkRobustMotionEstimator::estimate(const Mat &frame0, const Mat &frame1) Mat PyrLkRobustMotionEstimator::estimate(const Mat &frame0, const Mat &frame1)
{ {
detector_->detect(frame0, keypointsPrev_); detector_->detect(frame0, keypointsPrev_);
if (keypointsPrev_.empty())
return Mat::eye(3, 3, CV_32F);
pointsPrev_.resize(keypointsPrev_.size()); pointsPrev_.resize(keypointsPrev_.size());
for (size_t i = 0; i < keypointsPrev_.size(); ++i) for (size_t i = 0; i < keypointsPrev_.size(); ++i)