vigra::metrics Namespace Reference

Define functors for various common metrics. More...

Classes
class	Metric
	Functor to compute a metric between two vectors. More...

Enumerations
enum	MetricType {   ChiSquaredMetric =0 , HellingerMetric =1 , SquaredNormMetric =2 , NormMetric =3 ,   L2Norm =NormMetric , ManhattanMetric =4 , L1Norm =ManhattanMetric , SymetricKlMetric =5 ,   BhattacharyaMetric =6 }
	Tags to select a metric for vector distance computation. More...

Detailed Description

Define functors for various common metrics.

Enumeration Type Documentation

MetricType

enum MetricType

Tags to select a metric for vector distance computation.

Enumerator
ChiSquaredMetric	chi-squared distance for histograms (sum of squared differences normalized by means)
HellingerMetric	Hellinger distance (Euclidean distance between the square-root vectors).
SquaredNormMetric	squared Euclidean distance
NormMetric	Euclidean distance (L2 norm).
L2Norm	Euclidean distance (L2 norm).
ManhattanMetric	Manhattan distance (L1 norm).
L1Norm	Manhattan distance (L1 norm).
SymetricKlMetric	symmetric Kullback-Leibler divergence
BhattacharyaMetric	Bhattacharya distance (sum of elementwise geometric means).