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fix: estimateChessboardSharpness triggers out of range test

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Problem is that iter1 += tcols, iter2 += tcols are called without check.
row < trows - 1 check is processed after increment in "for" statements.
This commit is contained in:
Alexander Duda 2020-03-11 21:56:56 +01:00
parent 034a5f140c
commit d594e72586
1 changed files with 7 additions and 5 deletions
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12
modules/calib3d/src/chessboard.cpp
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@ -3323,14 +3323,16 @@ cv::Scalar Chessboard::Board::calcEdgeSharpness(cv::InputArray _img,float rise_d
// build vertical lines
for(int col = 1;col< tcols-1;++col)
{
std::vector<cv::Point2f>::const_iterator iter1 = centers.begin()+col;
std::vector<cv::Point2f>::const_iterator iter2 = iter1+tcols;
for(int row= 0;row<trows-1;++row,iter1+=tcols,iter2+=tcols)
pairs.push_back(std::make_pair(*iter1,*iter2));
// avoid using iterators to not trigger out of range
int i1 = col;
int i2 = i1 + tcols;
for (int row = 0; row < trows - 1; ++row, i1 += tcols, i2 += tcols)
{
pairs.push_back(std::make_pair(centers[i1], centers[i2]));
}
}
}
// calc edge response for each line
cv::Rect rect(0,0,img.cols,img.rows);
std::vector<std::pair<cv::Point2f,cv::Point2f> >::const_iterator iter = pairs.begin();