1i.oif(1)                      Grass User's Manual                     i.oif(1)
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NAME

6       i.oif   -  Calculates  Optimum-Index-Factor  table for LANDSAT TM bands
7       1-5, & 7
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KEYWORDS

10       raster, imagery, statistics
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SYNOPSIS

13       i.oif
14       i.oif help
15       i.oif   image1=string   image2=string    image3=string    image4=string
16       image5=string image7=string
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18   Parameters:
19       image1=string
20           LANDSAT TM band 1.
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22       image2=string
23           LANDSAT TM band 2.
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25       image3=string
26           LANDSAT TM band 3.
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28       image4=string
29           LANDSAT TM band 4.
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31       image5=string
32           LANDSAT TM band 5.
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34       image7=string
35           LANDSAT TM band 7.
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DESCRIPTION

38       i.oif  calculates  the  Optimum  Index  Factor  for  LANDSAT  TM  bands
39       1,2,3,4,5 and 7.
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41       The Optimum Index Factor is calculated to determine the  band  combina‐
42       tion which shows the maximum information when combined into a composite
43       image. The bands comprising the highest scoring combination from  i.oif
44       are used as the three color channels required for d.rgb or r.composite.
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46       The  analysis  is  saved  to  a  file  in  the current directory called
47       "i.oif.result".
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REFERENCES

50       Jensen,  1996.  Introductory  digital  image  processing,  p.98.   ISBN
51       0-13-205840-5
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SEE ALSO

54       d.rgb
55       r.composite
56       r.covar
57       r.univar
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AUTHOR

60       Markus Neteler, ITC-Irst, Trento, Italy Updated to GRASS 5.7 by Michael
61       Barton, Arizona State University
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63       Last changed: $Date: 2005/01/21 07:29:43 $
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65       Full index
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69GRASS 6.2.2                                                           i.oif(1)