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PCTSignaturesSQFDSimilarityFunction Enumeration
http://www.emgu.com
Similarity function selector.

Namespace:  Emgu.CV.XFeatures2D
Assembly:  Emgu.CV.World (in Emgu.CV.World.dll) Version: 3.3.0.2824 (3.3.0.2824)
Syntax
public enum SimilarityFunction
Members
  Member nameValueDescription
Minus0 -d(c_i, c_j)
Gaussian1 e^{ -\alpha * d^2(c_i, c_j)}
Heuristic2 1 / (\alpha + d(c_i, c_j))
See Also