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geotrellis.spark.equalization

RDDHistogramEqualization

object RDDHistogramEqualization

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  1. def multiband[K, V, M, T <: AnyVal](rdd: RDD[(K, V)] with Metadata[M], histograms: Array[Histogram[T]])(implicit arg0: (V) ⇒ MultibandTile, arg1: ClassTag[V]): RDD[(K, MultibandTile)] with Metadata[M]

    Given an RDD of MultibandTile objects and a sequence of Histogram objects (on per band) derived from all of the tiles, return another RDD of multiband tiles where the respective bands of the respective tiles have had their histograms equalized.

    Given an RDD of MultibandTile objects and a sequence of Histogram objects (on per band) derived from all of the tiles, return another RDD of multiband tiles where the respective bands of the respective tiles have had their histograms equalized.

    rdd

    An RDD of tile objects

    histograms

    A histogram derived from the whole RDD of tiles

  2. def multiband[K, V, M](rdd: RDD[(K, V)] with Metadata[M])(implicit arg0: (V) ⇒ MultibandTile, arg1: ClassTag[V]): RDD[(K, MultibandTile)] with Metadata[M]

    Given an RDD of MultibandTile objects, return another RDD of multiband tiles where the respective bands of the respective tiles have been equalized according to a joint histogram of the bands of the input RDD.

    Given an RDD of MultibandTile objects, return another RDD of multiband tiles where the respective bands of the respective tiles have been equalized according to a joint histogram of the bands of the input RDD.

    rdd

    An RDD of multiband tile objects

  3. def singleband[K, V, M, T <: AnyVal](rdd: RDD[(K, V)] with Metadata[M], histogram: Histogram[T])(implicit arg0: (V) ⇒ Tile, arg1: ClassTag[V]): RDD[(K, Tile)] with Metadata[M]

    Given an RDD of Tile objects and a Histogram which summarizes all of the tiles, return another RDD of tiles where the respective tiles have had their histograms equalized.

    Given an RDD of Tile objects and a Histogram which summarizes all of the tiles, return another RDD of tiles where the respective tiles have had their histograms equalized.

    rdd

    An RDD of tile objects

    histogram

    A histogram derived from the whole RDD of tiles

  4. def singleband[K, V, M](rdd: RDD[(K, V)] with Metadata[M])(implicit arg0: (V) ⇒ Tile, arg1: ClassTag[V]): RDD[(K, Tile)] with Metadata[M]

    Given an RDD of Tile objects, return another RDD of tiles where the respective tiles have had their histograms equalized the joint histogram of all of the tiles.

    Given an RDD of Tile objects, return another RDD of tiles where the respective tiles have had their histograms equalized the joint histogram of all of the tiles.

    rdd

    An RDD of tile objects