1r.composite(1)                Grass User's Manual               r.composite(1)
2
3
4

NAME

6       r.composite   -  Combines  red, green and blue map layers into a single
7       composite map layer.
8

KEYWORDS

10       raster
11

SYNOPSIS

13       r.composite
14       r.composite help
15       r.composite [-dc] red=string green=string blue=string  [levels=integer]
16       [lev_red=integer]     [lev_green=integer]     [lev_blue=integer]   out‐
17       put=string  [--overwrite]
18
19   Flags:
20       -d  Dither
21
22       -c  Use closest color
23
24       --overwrite
25
26   Parameters:
27       red=string
28           Name of raster map layer to be used for
29
30       green=string
31           Name of raster map layer to be used for
32
33       blue=string
34           Name of raster map layer to be used for
35
36       levels=integer
37           Number of levels to be  used  for  each  component  Options:  1-256
38           Default: 32
39
40       lev_red=integer
41           Number of levels to be used for Options: 1-256
42
43       lev_green=integer
44           Number of levels to be used for Options: 1-256
45
46       lev_blue=integer
47           Number of levels to be used for Options: 1-256
48
49       output=string
50           Name of raster map to contain results
51

DESCRIPTION

53       This  program  combines three raster map layers to form a composite RGB
54       layer. For each layer, the corresponding  component  from  the  layer's
55       color table is used (e.g. for the red layer, the red component is used,
56       and so on). In general, the layers should use a gray-scale color table.
57

NOTES

59       The default number of  intensity  levels  for  each  component  is  32,
60       resulting  in  a  total of 32768 possible colors (equivalent to 15 bits
61       per pixel). If significantly more levels than this are used,  not  only
62       will r.composite take longer to run, but displaying the resulting layer
63       with d.rast will also be significantly slower.
64
65       Floyd-Steinberg dithering is optionally used.
66

SEE ALSO

68        d.rast, d.rgb, r.blend, r.colors
69

AUTHOR

71       Glynn Clements
72
73       Last changed: $Date: 2005/03/01 20:18:14 $
74
75       Full index
76
77
78
79GRASS 6.2.2                                                     r.composite(1)