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Note: This document is for an older version of GRASS GIS that will be discontinued soon. You should upgrade, and read the current manual page.

NAME

i.spec.sam - Performs Spectral angle mapping on satellite/aerial images

KEYWORDS

imagery, spectral angle mapping, parallel

SYNOPSIS

i.spec.sam
i.spec.sam --help
i.spec.sam group=name input=name result=string [--help] [--verbose] [--quiet] [--ui]

Flags:

--help
Print usage summary
--verbose
Verbose module output
--quiet
Quiet module output
--ui
Force launching GUI dialog

Parameters:

group=name [required]
Name of input imagery group
input=name [required]
Matrix file containing spectral signatures
result=string [required]
Raster map prefix to hold spectral angles

Table of contents

DESCRIPTION

i.spec.sam is used to perform Spectral Angle Mapping.

Input matrix of signatures # Channels: r g b i1 i2 i3 # Enter spectra linewise! # 1. Sagebrush # 2. Saltbush # 3. Soil # 4. Dry grass # Matrix: 4 by 6 row0: 8.87 13.14 11.71 35.85 28.26 10.54 row1: 13.59 20.12 19.61 70.66 34.82 16.35 row2: 28.26 34.82 38.27 40.1 38.27 23.7 row3: 10.54 16.35 23.7 38.98 40.1 38.98

EXAMPLES

TODO

REFERENCES

SEE ALSO

i.spec.unmix,

AUTHORS

Markus Neteler, University of Hannover, 1999
Updated to GRASS GIS 7: Yann Chemin, 2015

SOURCE CODE

Available at: i.spec.sam source code (history)

Latest change: Wednesday Dec 13 11:57:28 2023 in commit: a894742e32793bc4f9cb003e8657dfcfd7fdfb18


Note: This document is for an older version of GRASS GIS that will be discontinued soon. You should upgrade, and read the current manual page.

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