i.rgb.his - Transforms raster maps from RGB (Red-Green-Blue) color space to HIS

       David Satnik, GIS Laboratory, Central Washington University,
       with acknowledgements to Ali Vali, Space Research Center, for the core routine.

i.rgb.his  is an image processing program that processes three input raster map layers as red, green, and
       blue components and produces three  output  raster  map  layers  representing  the  hue,  intensity,  and
       saturation  of  the data.  The output raster map layers are created by a standard red-green-blue (RGB) to
       hue-intensity-saturation (HIS) color transformation.  Each output raster map layer is given a linear gray
       scale color table.  The current geographic region definition and mask settings are respected.

       imagery, color transformation, RGB, HIS, IHS

i.rgb.his     -    Transforms    raster   maps   from   RGB   (Red-Green-Blue)   color   space   to   HIS
       (Hue-Intensity-Saturation) color space.

i.his.rgb

       Available at: i.rgb.his source code (history)

       Accessed: Friday Apr 04 01:21:00 2025

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       © 2003-2025 GRASS Development Team, GRASS GIS 8.4.1 Reference Manual

GRASS 8.4.1                                                                                    i.rgb.his(1grass)

i.rgb.hisi.rgb.his--helpi.rgb.hisred=namegreen=nameblue=namehue=nameintensity=namesaturation=name  [--overwrite]   [--help]
       [--verbose]  [--quiet]  [--ui]

   Flags:--overwrite
           Allow output files to overwrite existing files

       --help
           Print usage summary

       --verbose
           Verbose module output

       --quiet
           Quiet module output

       --ui
           Force launching GUI dialog

   Parameters:red=name[required]
           Name of input raster map (red)

       green=name[required]
           Name of input raster map (green)

       blue=name[required]
           Name of input raster map (blue)

       hue=name[required]
           Name for output raster map (hue)

       intensity=name[required]
           Name for output raster map (intensity)

       saturation=name[required]
           Name for output raster map (saturation)