10.0
10.1
11.0
11.1
11.2
11.3
12.0
12.1
12.2
6.0
6.1
6.2
6.2.0
6.2.0-rc1
6.2.0-rc2
6.3
6.3-rc1
6.3-rc2
6.3-rc3
7.10
7.4
7.5
7.6
7.6-blfs
7.6-systemd
7.7
7.8
7.9
8.0
8.1
8.2
8.3
8.4
9.0
9.1
basic
bdubbs/svn
elogind
gimp3
gnome
kde5-13430
kde5-14269
kde5-14686
kea
ken/TL2024
ken/inkscape-core-mods
ken/tuningfonts
krejzi/svn
lazarus
lxqt
nosym
perl-modules
plabs/newcss
plabs/python-mods
python3.11
qt5new
rahul/power-profiles-daemon
renodr/vulkan-addition
systemd-11177
systemd-13485
trunk
upgradedb
v1_0
v5_0
v5_0-pre1
v5_1
v5_1-pre1
xry111/for-12.3
xry111/intltool
xry111/llvm18
xry111/soup3
xry111/spidermonkey128
xry111/test-20220226
xry111/xf86-video-removal
Last change
on this file since ff68701 was c94bd46, checked in by Larry Lawrence <larry@…>, 22 years ago |
ent updates to Graphics Libraries
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@51 af4574ff-66df-0310-9fd7-8a98e5e911e0
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1 | <sect2>
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2 | <title>Introduction to libungif</title>
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3 |
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4 | <screen>Download location (HTTP): <ulink url="&libungif-download-http;"/>
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5 | Download location (FTP): <ulink url="&libungif-download-ftp;"/>
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6 | Version used: &libungif-version;
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7 | Package size: &libungif-size;
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8 | Estimated Disk space required: &libungif-buildsize;</screen>
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9 |
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10 | <para>The libungif package contains libraries for reading all gifs and
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11 | writing uncompressed ones as well as programs for converting and working
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12 | with gif files. The libraries are useful for any graphics program
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13 | wishing to deal with gif files while the programs are useful for
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14 | conversion purposes as well as cleaning up images.</para>
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15 |
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16 | <para>The reason libungif only writes uncompressed gifs is due to a
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17 | legal issue with LZW compression (which Unisys claims a patent on).
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18 | Reading gifs is not a problem as the uncompression routines do not seem
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19 | to be limited in this way. Note that this has in the past been
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20 | disputed. The best way to avoid this whole mess is to simply use
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21 | libungif for looking at gif images on the web, whilst in any pages which
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22 | you design, use the open source png format instead (which uses, not
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23 | surprisingly, the libpng library) which has no patent issues at
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24 | all.</para>
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25 |
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26 | </sect2>
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