geotrellis.raster.sigmoidal.Implicits
Given the parameters alpha and beta, perform the sigmoidal contrast computation and return the result as a tile.
Given 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
The center around-which the stretch is performed (given as a fraction)
The standard deviation in the computation, used to avoid saturating the upper and lower parts of the gamut
The output tile