Object

geotrellis.raster.sigmoidal

SigmoidalContrast

Related Doc: package sigmoidal

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object SigmoidalContrast

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  1. final def !=(arg0: Any): Boolean

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  2. final def ##(): Int

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  3. final def ==(arg0: Any): Boolean

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  4. def apply(tile: MultibandTile, alpha: Double, beta: Double): MultibandTile

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    Given a MultibandTile object and the parameters alpha and beta, perform the sigmoidal contrast computation on each band and return the result as a multiband tile.

    Given a MultibandTile object and the parameters alpha and beta, perform the sigmoidal contrast computation on each band and return the result as a multiband tile.

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

    tile

    The input multibandtile

    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

    The output tile

  5. def apply(tile: Tile, alpha: Double, beta: Double): Tile

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    Given a singleband Tile object and the parameters alpha and beta, perform the sigmoidal contrast computation and return the result as a tile.

    Given a singleband Tile object and the parameters alpha and beta, perform the sigmoidal contrast computation and return the result as a tile.

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

    tile

    The input tile

    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

    The output tile

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