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calib3d: check input values in dls

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This commit is contained in:
Maksim Shabunin 2020-03-24 12:22:26 +03:00
parent f44a0960df
commit 0aac17d9f7
1 changed files with 1 additions and 0 deletions
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modules/calib3d/src/dls.cpp
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@ -653,6 +653,7 @@ bool dls::is_empty(const cv::Mat * M)
bool dls::positive_eigenvalues(const cv::Mat * eigenvalues)
{
CV_Assert(eigenvalues && !eigenvalues->empty());
cv::MatConstIterator_<double> it = eigenvalues->begin<double>();
return *(it) > 0 && *(it+1) > 0 && *(it+2) > 0;
}