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1 '\" t
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2 .\" Title: gifclrmp
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3 .\" Author: [see the "Author" section]
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4 .\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
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5 .\" Date: 2 May 2012
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6 .\" Manual: GIFLIB Documentation
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7 .\" Source: GIFLIB
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8 .\" Language: English
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9 .\"
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10 .TH "GIFCLRMP" "1" "2 May 2012" "GIFLIB" "GIFLIB Documentation"
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11 .\" -----------------------------------------------------------------
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12 .\" * Define some portability stuff
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13 .\" -----------------------------------------------------------------
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14 .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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15 .\" http://bugs.debian.org/507673
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16 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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17 .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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18 .ie \n(.g .ds Aq \(aq
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19 .el .ds Aq '
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20 .\" -----------------------------------------------------------------
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21 .\" * set default formatting
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22 .\" -----------------------------------------------------------------
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24 .nh
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26 .ad l
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27 .\" -----------------------------------------------------------------
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28 .\" * MAIN CONTENT STARTS HERE *
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29 .\" -----------------------------------------------------------------
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30 .SH "NAME"
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31 gifclrmp \- extract colormaps from GIF images
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32 .SH "SYNOPSIS"
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33 .HP \w'\fBgifclrmp\fR\ 'u
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34 \fBgifclrmp\fR [\-v] [\-s] [\-l\ \fImapfile\fR] [\-t\ \fItrans\fR] [\-g\ \fIgamma\fR] [\-i\ \fIimage\fR] [\-h] [\fIgif\-file\fR]
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35 .SH "DESCRIPTION"
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36 .PP
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37 A program to modify GIF image colormaps\&. Any local colormap in a GIF file can be modified at a time, or the global screen one\&.
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38 .SH "OPTIONS"
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39 .PP
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40 \-v
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41 .RS 4
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42 Verbose mode (show progress)\&. Enables printout of running scan lines\&.
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43 .RE
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44 .PP
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45 \-s
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46 .RS 4
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47 Select the global screen color map\&.
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48 .RE
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49 .PP
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50 \-l mapfile
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51 .RS 4
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52 Load color map from this file instead of selected color map\&.
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53 .RE
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54 .PP
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55 \-t trans
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56 .RS 4
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57 Change color index values\&. The change is made to both the selected color table and the raster bits of the selected image\&. A translation file is a list of pairs of `before\*(Aq and `after\*(Aq index values\&. At present, the `before\*(Aq index values must be in ascending order starting from 0\&.
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58 .RE
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59 .PP
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60 \-g gamma
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61 .RS 4
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62 Apply gamma correction to selected color map\&.
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63 .RE
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64 .PP
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65 \-i image
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66 .RS 4
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67 Select the color map of the numbered image\&.
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68 .RE
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69 .PP
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70 \-h
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71 .RS 4
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72 Print one command line help, similar to Usage above\&.
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73 .RE
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74 .PP
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75 If no GIF file is given, gifclip will try to read a GIF file from stdin\&.
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76 .SH "NOTES"
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77 .sp
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78 .RS 4
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79 .ie n \{\
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80 \h'-04'\(bu\h'+03'\c
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81 .\}
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82 .el \{\
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83 .sp -1
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84 .IP \(bu 2.3
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85 .\}
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86 The default operation is to dump out the selected color map in text format\&.
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87 .RE
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88 .sp
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89 .RS 4
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90 .ie n \{\
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91 \h'-04'\(bu\h'+03'\c
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92 .\}
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93 .el \{\
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94 .sp -1
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95 .IP \(bu 2.3
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96 .\}
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97 The file to load/dump is simply one color map entry per line\&. Each such entry line has four integers: "ColorIndex Red Green Blue", where color index is in ascending order starting from 1\&.
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98 .RE
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99 .SH "AUTHOR"
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100 .PP
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101 Gershon Elber\&.
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