Numeric

Functions
void	cv::sfm::meanAndVarianceAlongRows (InputArray A, OutputArray mean, OutputArray variance)
	Computes the mean and variance of a given matrix along its rows. More...
Mat	cv::sfm::skew (InputArray x)
	Returns the 3x3 skew symmetric matrix of a vector. More...

Detailed Description

Function Documentation

meanAndVarianceAlongRows()

void cv::sfm::meanAndVarianceAlongRows	(	InputArray	A,
		OutputArray	mean,
		OutputArray	variance
	)

Computes the mean and variance of a given matrix along its rows.

Parameters

A	Input NxN matrix.
mean	Output Nx1 matrix with computed mean.
variance	Output Nx1 matrix with computed variance.

It computes in the same way as woud do reduce but with Variance function.

skew()

Mat cv::sfm::skew

(

InputArray

x

)

Returns the 3x3 skew symmetric matrix of a vector.

Parameters

x	Input 3x1 vector.

Reference: [72], p581, equation (A4.5).