Penguin
Recent Changes
Annotated edit history of pnmalias(1) version 1, including all changes. View license author blame.
Rev Author # Line
1 perry 1 pnmalias
2 !!!pnmalias
3 NAME
4 SYNOPSIS
5 DESCRIPTION
6 OPTIONS
7 SEE ALSO
8 AUTHOR
9 ----
10 !!NAME
11
12
13 pnmalias - antialias a portable anyumap.
14 !!SYNOPSIS
15
16
17 __pnmalias__ [[__-bgcolor__ ''color'']
18 [[__-fgcolor__ ''color''] [[__-bonly__]
19 [[__-fonly__] [[__-balias__] [[__-falias__]
20 [[__-weight__ ''w''] [[''pnmfile'']
21 !!DESCRIPTION
22
23
24 Reads a portable anymap as input, and applies anti-aliasing
25 to background and foreground pixels. If the input file is a
26 portable bitmap, the output anti-aliased image is promoted
27 to a graymap, and a message is printed informing the user of
28 the change in format.
29 !!OPTIONS
30
31
32 __-bgcolor__ ''colorb,'' __-fgcolor__
33 ''colorf''
34
35
36 set the background color to ''colorb,'' and the
37 foreground to color to ''colorf.'' Pixels with these
38 values will be anti-aliased. by default, the background
39 color is taken to be black, and foreground color is assumed
40 to be white. The colors can be specified in five
41 ways:
42
43
44 __o__
45
46
47 A name, assuming that a pointer to an X11-style color names
48 file was compiled in.
49
50
51 __o__
52
53
54 An X11-style hexadecimal specifier: rgb:r/g/b, where r g and
55 b are each 1- to 4-digit hexadecimal numbers.
56
57
58 __o__
59
60
61 An X11-style decimal specifier: rgbi:r/g/b, where r g and b
62 are floating point numbers between 0 and 1.
63
64
65 __o__
66
67
68 For backwards compatibility, an old-X11-style hexadecimal
69 number: #rgb, #rrggbb, #rrrgggbbb, or
70 #rrrrggggbbbb.
71
72
73 __o__
74
75
76 For backwards compatibility, a triplet of numbers separated
77 by commas: r,g,b, where r g and b are floating point numbers
78 between 0 and 1. (This style was added before MIT came up
79 with the similar rgbi style.)
80
81
82 Note that even when dealing with graymaps, background and
83 foreground colors need to be specified in the fashion
84 described above. In this case, background and foreground
85 pixel values are taken to be the value of the red component
86 for the given color.
87
88
89 __-bonly__, __-fonly__
90
91
92 Apply anti-aliasing only to background (__-bonly__), or
93 foreground (__-fonly__) pixels.
94
95
96 __-balias__, __-falias__
97
98
99 Apply anti-aliasing to all pixels surrounding background
100 (__-balias__), or foreground (__-falias__) pixels. By
101 default, anti-aliasing takes place only among neighboring
102 background and foreground pixels.
103
104
105 __-weight__ ''w''
106
107
108 Use ''w'' as the central weight for the aliasing filter.
109 ''W'' must be a real number in the range 0 ''w''
110 ''w'' is, the
111 ''
112 !!SEE ALSO
113
114
115 pbmtext(1), pnmsmooth(1), pnm(5)
116 !!AUTHOR
117
118
119 Copyright (C) 1992 by Alberto Accomazzi, Smithsonian
120 Astrophysical Observatory.
121 ----
This page is a man page (or other imported legacy content). We are unable to automatically determine the license status of this page.