GRASS logo

NAME

i.rgb.his - Red-green-blue (rgb) to hue-intensity-saturation (his) raster map color transformation function

KEYWORDS

imagery

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
Red input raster map
green_input=name
Green input raster map
blue_input=name
Blue input raster map
hue_output=name
Output hue raster map
intensity_output=name
Output intensity raster map
saturation_output=name
Output saturation raster map

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

hsv.rgb.sh
i.his.rgb
rgb.hsv.sh

AUTHOR

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

Last changed: $Date: 2003-04-17 07:51:33 -0700 (Thu, 17 Apr 2003) $


Main index - imagery index - Full index

© 2003-2008 GRASS Development Team