NAME

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

KEYWORDS

       imagery, color transformation, RGB, HIS

SYNOPSIS

       i.rgb.his
       i.rgb.his help
       i.rgb.his   red_input=name   green_input=name   blue_input=name   hue_output=name   intensity_output=name
       saturation_output=name  [--overwrite]  [--verbose]  [--quiet]

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

       --verbose
           Verbose module output

       --quiet
           Quiet module output

   Parameters:
       red_input=name
           Name of input raster map (red)

       green_input=name
           Name of input raster map (green)

       blue_input=name
           Name of input raster map (blue)

       hue_output=name
           Name for output raster map (hue)

       intensity_output=name
           Name for output raster map (intensity)

       saturation_output=name
           Name for output raster map (saturation)

DESCRIPTION

       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.

SEE ALSO

       i.his.rgb

AUTHOR

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

       Last changed: $Date: 2011-11-08 03:29:50 -0800 (Tue, 08 Nov 2011) $

       Full index

       © 2003-2013 GRASS Development Team

GRASS 6.4.3                                                                                    i.rgb.his(1grass)