Histogram

Measure histograms. More...

Functions
template<typename DerivedA , typename DerivedB , typename T = typename DerivedA::Scalar, typename = std::enable_if_t<std::is_same_v<typename DerivedA::Scalar, typename DerivedB::Scalar>>>
T	Euclid::l1 (const Eigen::ArrayBase< DerivedA > &d1, const Eigen::ArrayBase< DerivedB > &d2)
	L1 distance.
template<typename DerivedA , typename DerivedB , typename T = typename DerivedA::Scalar, typename = std::enable_if_t<std::is_same_v<typename DerivedA::Scalar, typename DerivedB::Scalar>>>
T	Euclid::l2 (const Eigen::ArrayBase< DerivedA > &d1, const Eigen::ArrayBase< DerivedB > &d2)
	L2 distance.
template<typename DerivedA , typename DerivedB , typename T = typename DerivedA::Scalar, typename = std::enable_if_t<std::is_same_v<typename DerivedA::Scalar, typename DerivedB::Scalar>>>
T	Euclid::chi2 (const Eigen::ArrayBase< DerivedA > &d1, const Eigen::ArrayBase< DerivedB > &d2)
	Chi-squared distance. More...
template<typename DerivedA , typename DerivedB , typename T = typename DerivedA::Scalar, typename = std::enable_if_t<std::is_same_v<typename DerivedA::Scalar, typename DerivedB::Scalar>>>
T	Euclid::chi2_asym (const Eigen::ArrayBase< DerivedA > &d1, const Eigen::ArrayBase< DerivedB > &d2)
	Asymmetric chi-squared distance. More...

Detailed Description

Histograms are commonly used as shape descriptors. This package contains functions to compute distances between histograms.

Function Documentation

template<typename DerivedA , typename DerivedB , typename T = typename DerivedA::Scalar, typename = std::enable_if_t<std::is_same_v<typename DerivedA::Scalar, typename DerivedB::Scalar>>>

T Euclid::chi2	(	const Eigen::ArrayBase< DerivedA > &	d1,
		const Eigen::ArrayBase< DerivedB > &	d2
	)

\(D(d_1, d_2) = 2\sum_i \frac{(d1(i) - d2(i))^2}{(d1(i) + d2(i))}\)

template<typename DerivedA , typename DerivedB , typename T = typename DerivedA::Scalar, typename = std::enable_if_t<std::is_same_v<typename DerivedA::Scalar, typename DerivedB::Scalar>>>

T Euclid::chi2_asym	(	const Eigen::ArrayBase< DerivedA > &	d1,
		const Eigen::ArrayBase< DerivedB > &	d2
	)

\(D(d_1, d_2) = \sum_i \frac{(d1(i) - d2(i))^2}{d1(i)}\)