i.spec.sam - GRASS GIS manual

Note: This document is for an older version of GRASS GIS that has been discontinued. 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

DESCRIPTION
EXAMPLES
REFERENCES
SEE ALSO
AUTHORS

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

Neteler, M., 1999: Spectral Mixture Analysis von Satellitendaten zur Bestimmung von Bodenbedeckungsgraden im Hinblick auf die Erosionsmodellierung. M.Sc. thesis, University of Hannover, Germany.
Neteler, M., D. Grasso, I. Michelazzi, L. Miori, S. Merler, and C. Furlanello, 2004. New image processing tools for GRASS. - In Proc. Free/Libre and Open Source Software for Geoinformatics: GIS-GRASS Users Conference, 12-14 Sep 2004, Bangkok, Thailand.
Neteler, M., D. Grasso, I. Michelazzi, L. Miori, S. Merler, and C. Furlanello, 2005. An integrated toolbox for image registration, fusion and classification. International Journal of Geoinformatics, 1(1), pp. 51-61. (PDF)

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: Monday Jun 24 13:07:24 2024 in commit: 71dbc88614ccda943c73db28f3531855610f6146