Packages

c

geotrellis.spark.sigmoidal.Implicits

withRDDSinglebandSigmoidalMethods

implicit class withRDDSinglebandSigmoidalMethods[K, V] extends RDDSinglebandSigmoidalMethods[K, V]

Linear Supertypes
RDDSinglebandSigmoidalMethods[K, V], MethodExtensions[RDD[(K, V)]], Serializable, Serializable, AnyRef, Any
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Inherited
  1. withRDDSinglebandSigmoidalMethods
  2. RDDSinglebandSigmoidalMethods
  3. MethodExtensions
  4. Serializable
  5. Serializable
  6. AnyRef
  7. Any
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Instance Constructors

  1. new withRDDSinglebandSigmoidalMethods(self: RDD[(K, V)])(implicit arg0: (V) ⇒ Tile)

Value Members

  1. val self: RDD[(K, V)]
    Definition Classes
    withRDDSinglebandSigmoidalMethods → MethodExtensions
  2. def sigmoidal(alpha: Double, beta: Double): RDD[(K, Tile)]

    Given parameters alpha and beta, return an RDD of tiles upon-which the sigmoidal contrast operation has been performed.

    Given parameters alpha and beta, return an RDD of tiles upon-which the sigmoidal contrast operation has been performed.

    The approach used is described here: https://www.imagemagick.org/Usage/color_mods/#sigmoidal

    alpha

    The center around-which the stretch is performed (given as a fraction)

    beta

    The standard deviation in the computation, used to avoid saturating the upper and lower parts of the gamut

    returns

    An RDD of output tiles

    Definition Classes
    RDDSinglebandSigmoidalMethods