source: general/graphlib/libungif.xml@ 42a04581

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Last change on this file since 42a04581 was 42a04581, checked in by Manuel Canales Esparcia <manuel@…>, 18 years ago

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1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
3 "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../../general.ent">
5 %general-entities;
6
7 <!ENTITY libungif-download-http "http://prdownloads.sourceforge.net/libungif/libungif-&libungif-version;.tar.bz2">
8 <!ENTITY libungif-download-ftp " ">
9 <!ENTITY libungif-md5sum "8c198831cc0495596c78134b8849e9ad">
10 <!ENTITY libungif-size "430 KB">
11 <!ENTITY libungif-buildsize "6.2 MB">
12 <!ENTITY libungif-time "0.16 SBU">
13]>
14
15<sect1 id="libungif" xreflabel="libungif-&libungif-version;">
16 <?dbhtml filename="libungif.html"?>
17
18 <sect1info>
19 <othername>$LastChangedBy$</othername>
20 <date>$Date$</date>
21 </sect1info>
22
23 <title>Libungif-&libungif-version;</title>
24
25 <indexterm zone="libungif">
26 <primary sortas="a-Libungif">Libungif</primary>
27 </indexterm>
28
29 <sect2 role="package">
30 <title>Introduction to Libungif</title>
31
32 <para>The <application>libungif</application> package contains libraries
33 for reading all GIFs and writing non-compressed ones as well as programs
34 for converting and working with GIF files. The libraries are useful for any
35 graphics program wishing to deal with GIF files while the programs are useful
36 for conversion purposes as well as cleaning up images.</para>
37
38 <para>The reason <application>libungif</application> only writes non-compressed
39 GIFs is due to a legal issue with LZW compression (which Unisys claimed a patent
40 on). Reading GIFs is not a problem as the decompression routines do not seem to
41 be limited in this way. Note that this has in the past been disputed. The best way to
42 avoid this whole mess is to simply use <application>libungif</application> for
43 looking at GIF images on the web, while in any pages which you design, use the open
44 source PNG format instead (which uses, not surprisingly, the
45 <application>libpng</application> library) which has no patent issues at all.</para>
46
47 <bridgehead renderas="sect3">Package Information</bridgehead>
48 <itemizedlist spacing="compact">
49 <listitem>
50 <para>Download (HTTP): <ulink url="&libungif-download-http;"/></para>
51 </listitem>
52 <listitem>
53 <para>Download (FTP): <ulink url="&libungif-download-ftp;"/></para>
54 </listitem>
55 <listitem>
56 <para>Download MD5 sum: &libungif-md5sum;</para>
57 </listitem>
58 <listitem>
59 <para>Download size: &libungif-size;</para>
60 </listitem>
61 <listitem>
62 <para>Estimated disk space required: &libungif-buildsize;</para>
63 </listitem>
64 <listitem>
65 <para>Estimated build time: &libungif-time;</para>
66 </listitem>
67 </itemizedlist>
68
69 <bridgehead renderas="sect3">Libungif Dependencies</bridgehead>
70
71 <bridgehead renderas="sect4">Optional</bridgehead>
72 <para>X (<xref linkend="xfree86"/> or <xref linkend="xorg"/>)</para>
73
74 </sect2>
75
76 <sect2 role='installation'>
77 <title>Installation of Libungif</title>
78
79 <para>Install <application>libungif</application> by running the following
80 commands:</para>
81
82<screen><userinput>./configure --prefix=/usr &amp;&amp;
83make &amp;&amp;
84make install &amp;&amp;
85install -v -m755 -d /usr/share/doc/libungif-&libungif-version;/html &amp;&amp;
86install -v -m644 doc/*.{png,html} \
87 /usr/share/doc/libungif-&libungif-version;/html &amp;&amp;
88install -v -m644 doc/*.txt \
89 /usr/share/doc/libungif-&libungif-version;</userinput></screen>
90
91 </sect2>
92
93 <sect2 role="content">
94 <title>Contents</title>
95
96 <segmentedlist>
97 <segtitle>Installed Programs</segtitle>
98 <segtitle>Installed Library</segtitle>
99 <segtitle>Installed Directories</segtitle>
100
101 <seglistitem>
102 <seg>gif2epsn, gif2ps, gif2rgb, gif2x11, gifasm, gifbg, gifburst, gifclip,
103 gifclrmp, gifcolor, gifcomb, gifcompose, giffiltr, giffix, gifflip, gifhisto,
104 gifinfo, gifinter, gifinto, gifovly, gifpos, gifrotat, gifrsize, gifspnge, giftext,
105 gifwedge, icon2gif, raw2gif, rgb2gif, and text2gif</seg>
106 <seg>libungif.[so,a]</seg>
107 <seg>None</seg>
108 </seglistitem>
109 </segmentedlist>
110
111 <variablelist>
112 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
113 <?dbfo list-presentation="list"?>
114 <?dbhtml list-presentation="table"?>
115
116 <varlistentry id="gif2epsn-libungif">
117 <term><command>gif2epsn</command></term>
118 <listitem>
119 <para>dumps images saved as GIF files on Epson type printers.</para>
120 <indexterm zone="libungif gif2epsn-libungif">
121 <primary sortas="b-gif2epsn">gif2epsn</primary>
122 </indexterm>
123 </listitem>
124 </varlistentry>
125
126 <varlistentry id="gif2ps-libungif">
127 <term><command>gif2ps</command></term>
128 <listitem>
129 <para>print GIF files on laser printers supporting PostScript.</para>
130 <indexterm zone="libungif gif2ps-libungif">
131 <primary sortas="b-gif2ps">gif2ps</primary>
132 </indexterm>
133 </listitem>
134 </varlistentry>
135
136 <varlistentry id="gif2rgb-libungif">
137 <term><command>gif2rgb</command></term>
138 <listitem>
139 <para>convert images saved as GIF to 24-bit RGB image(s).</para>
140 <indexterm zone="libungif gif2rgb-libungif">
141 <primary sortas="b-gif2rgb">gif2rgb</primary>
142 </indexterm>
143 </listitem>
144 </varlistentry>
145
146 <varlistentry id="gif2x11-libungif">
147 <term><command>gif2x11</command></term>
148 <listitem>
149 <para>display images saved as GIF files under X Window System.</para>
150 <indexterm zone="libungif gif2x11-libungif">
151 <primary sortas="b-gif2x11">gif2x11</primary>
152 </indexterm>
153 </listitem>
154 </varlistentry>
155
156 <varlistentry id="gifasm-libungif">
157 <term><command>gifasm</command></term>
158 <listitem>
159 <para>assemble multiple GIFs into one, or burst a multiple-image GIF.</para>
160 <indexterm zone="libungif gifasm-libungif">
161 <primary sortas="b-gifasm">gifasm</primary>
162 </indexterm>
163 </listitem>
164 </varlistentry>
165
166 <varlistentry id="gifbg-libungif">
167 <term><command>gifbg</command></term>
168 <listitem>
169 <para>generate a single-color test pattern GIF.</para>
170 <indexterm zone="libungif gifbg-libungif">
171 <primary sortas="b-gifbg">gifbg</primary>
172 </indexterm>
173 </listitem>
174 </varlistentry>
175
176 <varlistentry id="gifburst-libungif">
177 <term><command>gifburst</command></term>
178 <listitem>
179 <para>burst a GIF image into subrectangles.</para>
180 <indexterm zone="libungif gifburst-libungif">
181 <primary sortas="b-gifburst">gifburst</primary>
182 </indexterm>
183 </listitem>
184 </varlistentry>
185
186 <varlistentry id="gifclip-libungif">
187 <term><command>gifclip</command></term>
188 <listitem>
189 <para>clip or crop a GIF image.</para>
190 <indexterm zone="libungif gifclip-libungif">
191 <primary sortas="b-gifclip">gifclip</primary>
192 </indexterm>
193 </listitem>
194 </varlistentry>
195
196 <varlistentry id="gifclrmp-libungif">
197 <term><command>gifclrmp</command></term>
198 <listitem>
199 <para>modify GIF image colormaps.</para>
200 <indexterm zone="libungif gifclrmp-libungif">
201 <primary sortas="b-gifclrmp">gifclrmp</primary>
202 </indexterm>
203 </listitem>
204 </varlistentry>
205
206 <varlistentry id="gifcolor-libungif">
207 <term><command>gifcolor</command></term>
208 <listitem>
209 <para>generate color test patterns.</para>
210 <indexterm zone="libungif gifcolor-libungif">
211 <primary sortas="b-gifcolor">gifcolor</primary>
212 </indexterm>
213 </listitem>
214 </varlistentry>
215
216 <varlistentry id="gifcomb-libungif">
217 <term><command>gifcomb</command></term>
218 <listitem>
219 <para>combine 2 GIF images of exactly the same size into one.</para>
220 <indexterm zone="libungif gifcomb-libungif">
221 <primary sortas="b-gifcomb">gifcomb</primary>
222 </indexterm>
223 </listitem>
224 </varlistentry>
225
226 <varlistentry id="gifcompose-libungif">
227 <term><command>gifcompose</command></term>
228 <listitem>
229 <para>use (un)giflib tools to compose images.</para>
230 <indexterm zone="libungif gifcompose-libungif">
231 <primary sortas="b-gifcompose">gifcompose</primary>
232 </indexterm>
233 </listitem>
234 </varlistentry>
235
236 <varlistentry id="giffiltr-libungif">
237 <term><command>giffiltr</command></term>
238 <listitem>
239 <para>template code for filtering a GIF sequentially.</para>
240 <indexterm zone="libungif giffiltr-libungif">
241 <primary sortas="b-giffiltr">giffiltr</primary>
242 </indexterm>
243 </listitem>
244 </varlistentry>
245
246 <varlistentry id="giffix-libungif">
247 <term><command>giffix</command></term>
248 <listitem>
249 <para>clumsily attempts to fix truncated GIF images.</para>
250 <indexterm zone="libungif giffix-libungif">
251 <primary sortas="b-giffix">giffix</primary>
252 </indexterm>
253 </listitem>
254 </varlistentry>
255
256 <varlistentry id="gifflip-libungif">
257 <term><command>gifflip</command></term>
258 <listitem>
259 <para>flip GIF image along X or Y axis or rotate by 90 degrees.</para>
260 <indexterm zone="libungif gifflip-libungif">
261 <primary sortas="b-gifflip">gifflip</primary>
262 </indexterm>
263 </listitem>
264 </varlistentry>
265
266 <varlistentry id="gifhisto-libungif">
267 <term><command>gifhisto</command></term>
268 <listitem>
269 <para>generate color-frequency histogram from a GIF.</para>
270 <indexterm zone="libungif gifhisto-libungif">
271 <primary sortas="b-gifhisto">gifhisto</primary>
272 </indexterm>
273 </listitem>
274 </varlistentry>
275
276 <varlistentry id="gifinfo-libungif">
277 <term><command>gifinfo</command></term>
278 <listitem>
279 <para>gives information on a GIF file.</para>
280 <indexterm zone="libungif gifinfo-libungif">
281 <primary sortas="b-gifinfo">gifinfo</primary>
282 </indexterm>
283 </listitem>
284 </varlistentry>
285
286 <varlistentry id="gifinter-libungif">
287 <term><command>gifinter</command></term>
288 <listitem>
289 <para>convert between interlaced and non-interlaced images.</para>
290 <indexterm zone="libungif gifinter-libungif">
291 <primary sortas="b-gifinter">gifinter</primary>
292 </indexterm>
293 </listitem>
294 </varlistentry>
295
296 <varlistentry id="gifinto-libungif">
297 <term><command>gifinto</command></term>
298 <listitem>
299 <para>end-of-pipe fitting for GIF-processing pipelines.</para>
300 <indexterm zone="libungif gifinto-libungif">
301 <primary sortas="b-gifinto">gifinto</primary>
302 </indexterm>
303 </listitem>
304 </varlistentry>
305
306 <varlistentry id="gifovly-libungif">
307 <term><command>gifo-libungifvly</command></term>
308 <listitem>
309 <para>generate one composite GIF from a multiple-image GIF.</para>
310 <indexterm zone="libungif gifovly-libungif">
311 <primary sortas="b-gifovly">gifovly</primary>
312 </indexterm>
313 </listitem>
314 </varlistentry>
315
316 <varlistentry id="gifpos-libungif">
317 <term><command>gifpos</command></term>
318 <listitem>
319 <para>change a GIF's screen size or recondition it.</para>
320 <indexterm zone="libungif gifpos-libungif">
321 <primary sortas="b-gifpos">gifpos</primary>
322 </indexterm>
323 </listitem>
324 </varlistentry>
325
326 <varlistentry id="gifrotat-libungif">
327 <term><command>gifrotat</command></term>
328 <listitem>
329 <para>rotate a GIF through any desired angle.</para>
330 <indexterm zone="libungif gifrotat-libungif">
331 <primary sortas="b-gifrotat">gifrotat</primary>
332 </indexterm>
333 </listitem>
334 </varlistentry>
335
336 <varlistentry id="gifrsize-libungif">
337 <term><command>gifrsize</command></term>
338 <listitem>
339 <para>resize a GIF by deletion or duplication of bits.</para>
340 <indexterm zone="libungif gifrsize-libungif">
341 <primary sortas="b-gifrsize">gifrsize</primary>
342 </indexterm>
343 </listitem>
344 </varlistentry>
345
346 <varlistentry id="gifspnge-libungif">
347 <term><command>gifspnge</command></term>
348 <listitem>
349 <para>template code for filtering a GIF with in-core operations.</para>
350 <indexterm zone="libungif gifspnge-libungif">
351 <primary sortas="b-gifspnge">gifspnge</primary>
352 </indexterm>
353 </listitem>
354 </varlistentry>
355
356 <varlistentry id="giftext-libungif">
357 <term><command>giftext</command></term>
358 <listitem>
359 <para>print (text only) general information about a GIF.</para>
360 <indexterm zone="libungif giftext-libungif">
361 <primary sortas="b-giftext">giftext</primary>
362 </indexterm>
363 </listitem>
364 </varlistentry>
365
366 <varlistentry id="gifwedge-libungif">
367 <term><command>gifwedge</command></term>
368 <listitem>
369 <para>create a test GIF image resembling a color monitor test pattern.</para>
370 <indexterm zone="libungif gifwedge-libungif">
371 <primary sortas="b-gifwedge">gifwedge</primary>
372 </indexterm>
373 </listitem>
374 </varlistentry>
375
376 <varlistentry id="icon2gif-libungif">
377 <term><command>icon2gif</command></term>
378 <listitem>
379 <para>converter/deconverter to/from an editable text format.</para>
380 <indexterm zone="libungif icon2gif-libungif">
381 <primary sortas="b-icon2gif">icon2gif</primary>
382 </indexterm>
383 </listitem>
384 </varlistentry>
385
386 <varlistentry id="raw2gif-libungif">
387 <term><command>raw2gif</command></term>
388 <listitem>
389 <para>convert raw 8-bit image data into GIF files.</para>
390 <indexterm zone="libungif raw2gif-libungif">
391 <primary sortas="b-raw2gif">raw2gif</primary>
392 </indexterm>
393 </listitem>
394 </varlistentry>
395
396 <varlistentry id="rgb2gif-libungif">
397 <term><command>rgb2gif</command></term>
398 <listitem>
399 <para>convert 24 bit images to a GIF image using color quantization.</para>
400 <indexterm zone="libungif rgb2gif-libungif">
401 <primary sortas="b-rgb2gif">rgb2gif</primary>
402 </indexterm>
403 </listitem>
404 </varlistentry>
405
406 <varlistentry id="text2gif-libungif">
407 <term><command>text2gif</command></term>
408 <listitem>
409 <para>generate GIF images out of regular text in 8x8 font.</para>
410 <indexterm zone="libungif text2gif-libungif">
411 <primary sortas="b-text2gif">text2gif</primary>
412 </indexterm>
413 </listitem>
414 </varlistentry>
415
416 </variablelist>
417
418 </sect2>
419
420</sect1>
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