1i.fusion.brovey(1) Grass User's Manual i.fusion.brovey(1)
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6 i.fusion.brovey - Brovey transform to merge multispectral and high-res
7 panchromatic channels
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10 raster, imagery, fusion
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13 i.fusion.brovey
14 i.fusion.brovey help
15 i.fusion.brovey [-lqs] ms1=string ms2=string ms3=string pan=string out‐
16 putprefix=string [--overwrite] [--verbose] [--quiet]
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18 Flags:
19 -l
20 sensor: LANDSAT
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22 -q
23 sensor: QuickBird
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25 -s
26 sensor: SPOT
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28 --overwrite
29 Allow output files to overwrite existing files
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31 --verbose
32 Verbose module output
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34 --quiet
35 Quiet module output
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37 Parameters:
38 ms1=string
39 raster input map (green: tm2 | qbird_green | spot1)
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41 ms2=string
42 raster input map (NIR: tm4 | qbird_nir | spot2)
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44 ms3=string
45 raster input map (MIR; tm5 | qbird_red | spot3)
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47 pan=string
48 raster input map (etmpan | qbird_pan | spotpan)
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50 outputprefix=string
51 raster output map prefix (e.g. 'brov')
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54 i.fusion.brovey performs a Brovey transformation using three multispec‐
55 tral and the panchromatic satellite image scene channels. Three new
56 channels are calculated according to the formula:
57 DN_b1
58 DN_fused = ------------------------------- * DN_pan
59 DN_b1 + DN_b2 + DN_b3
60 The assignment of the channels depends on the satellite. The module's
61 help text (above) suggests for LANDSAT-7, QuickBird and SPOT.
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64 The command changes temporarily to the high resolution of the panchro‐
65 matic channels for creating the three output channels, then restores
66 the previous region settings. The current region coordinates are
67 respected. The three pan-sharpened output channels may be combined with
68 d.rgb or r.composite.
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71 i.his.rgb, i.rgb.his, d.rgb, r.composite
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74 Original Brovey formula reference unknown, probably
75 Roller, N.E.G. and Cox, S., 1980. Comparison of Landsat
76 MSS and merged MSS/RBV data for analysis of natural vege‐
77 tation. Proc. of the 14th International Symposium on
78 Remote Sensing of Environment, San Jose, Costa Rica,
79 23-30 April, pp. 1001-1007
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81 Pohl, C., and J.L. van Genderen, 1998. Multisensor image
82 fusion in remote sensing: concepts, methods and applica‐
83 tion. Int. J. of Rem. Sens., 19, 823-854.
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85 M. Neteler, D. Grasso, I. Michelazzi, L. Miori, S. Mer‐
86 ler, and C. Furlanello, 2005. An integrated toolbox for
87 image registration, fusion and classification. Interna‐
88 tional Journal of Geoinformatics, Special Issue on
89 FOSS/GRASS 2004 & GIS-IDEAS 2004 (in press)
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92 Markus Neteler, ITC-irst
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94 Last changed: $Date: 2005-03-02 15:51:25 +0100 (Wed, 02 Mar 2005) $
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96 Full index
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98 © 2003-2008 GRASS Development Team
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102GRASS 6.3.0 i.fusion.brovey(1)