http://fileformats.archiveteam.org/index.php?title=CCITT_Group_3&feed=atom&action=history
CCITT Group 3 - Revision history
2024-03-29T07:22:54Z
Revision history for this page on the wiki
MediaWiki 1.19.2
http://fileformats.archiveteam.org/index.php?title=CCITT_Group_3&diff=46688&oldid=prev
Dexvertbot: Change telparia.com samples link to template
2023-12-28T02:56:42Z
<p>Change telparia.com samples link to template</p>
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<td colspan='2' style="background-color: white; color:black;">← Older revision</td>
<td colspan='2' style="background-color: white; color:black;">Revision as of 02:56, 28 December 2023</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Sample files ==</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Sample files ==</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* <del class="diffchange diffchange-inline">https://telparia.com/fileFormatSamples/</del>image/faxGroup3<del class="diffchange diffchange-inline">/</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* <ins class="diffchange diffchange-inline">{{DexvertSamples|</ins>image/faxGroup3<ins class="diffchange diffchange-inline">}}</ins></div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Links ==</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Links ==</div></td></tr>
</table>
Dexvertbot
http://fileformats.archiveteam.org/index.php?title=CCITT_Group_3&diff=41428&oldid=prev
Sembiance: Added abydos as software and a sample files link
2021-11-28T23:20:10Z
<p>Added abydos as software and a sample files link</p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 23:20, 28 November 2021</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [[ImageMagick]] (format named "FAX")</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [[ImageMagick]] (format named "FAX")</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [[Farbfeld Utilities]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [[Farbfeld Utilities]]</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* [http://snisurset.net/code/abydos/ abydos]</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">== Sample files ==</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* https://telparia.com/fileFormatSamples/image/faxGroup3/</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Links ==</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Links ==</div></td></tr>
</table>
Sembiance
http://fileformats.archiveteam.org/index.php?title=CCITT_Group_3&diff=38724&oldid=prev
Jsummers: /* Specifications */
2020-12-02T14:23:33Z
<p><span dir="auto"><span class="autocomment">Specifications</span></span></p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 14:23, 2 December 2020</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Specifications ==</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Specifications ==</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* [<del class="diffchange diffchange-inline">http</del>://www.itu.int/rec/T-REC-T.4/en ITU-T Recommendation T.4]</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* [<ins class="diffchange diffchange-inline">https</ins>://www.itu.int/rec/T-REC-T.4/en ITU-T Recommendation T.4]</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* [<del class="diffchange diffchange-inline">http</del>://<del class="diffchange diffchange-inline">partners</del>.adobe.<del class="diffchange diffchange-inline">com</del>/<del class="diffchange diffchange-inline">public</del>/<del class="diffchange diffchange-inline">developer</del>/<del class="diffchange diffchange-inline">en/tiff/TIFF6.pdf </del>TIFF <del class="diffchange diffchange-inline">6</del>.<del class="diffchange diffchange-inline">0 Specification</del>], Section 10: Modified Huffman Compression</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* [<ins class="diffchange diffchange-inline">https</ins>://<ins class="diffchange diffchange-inline">www</ins>.adobe.<ins class="diffchange diffchange-inline">io</ins>/<ins class="diffchange diffchange-inline">open</ins>/<ins class="diffchange diffchange-inline">standards</ins>/TIFF.<ins class="diffchange diffchange-inline">html Adobe TIFF standards</ins>] <ins class="diffchange diffchange-inline">→ TIFF6.pdf</ins>, Section 10: Modified Huffman Compression <ins class="diffchange diffchange-inline">- Defines a slightly simplified form of the 1-d format</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Software ==</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Software ==</div></td></tr>
</table>
Jsummers
http://fileformats.archiveteam.org/index.php?title=CCITT_Group_3&diff=37751&oldid=prev
Dan Tobias at 01:32, 25 August 2020
2020-08-25T01:32:59Z
<p></p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 01:32, 25 August 2020</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>|formattype=electronic</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>|formattype=electronic</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>|subcat=Compression</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>|subcat=Compression</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">|subcat2=Fax formats</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>|extensions={{ext|g3}}</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>|extensions={{ext|g3}}</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>|mimetypes={{mimetype|image/g3fax}}</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>|mimetypes={{mimetype|image/g3fax}}</div></td></tr>
</table>
Dan Tobias
http://fileformats.archiveteam.org/index.php?title=CCITT_Group_3&diff=33735&oldid=prev
Zzo38: +Farbfeld Utilities
2019-10-28T05:54:54Z
<p>+<a href="/wiki/Farbfeld_Utilities" title="Farbfeld Utilities">Farbfeld Utilities</a></p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 05:54, 28 October 2019</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [[Netpbm]]: g3topbm, pbmtog3</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [[Netpbm]]: g3topbm, pbmtog3</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [[ImageMagick]] (format named "FAX")</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [[ImageMagick]] (format named "FAX")</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* [[Farbfeld Utilities]]</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Links ==</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Links ==</div></td></tr>
</table>
Zzo38
http://fileformats.archiveteam.org/index.php?title=CCITT_Group_3&diff=26032&oldid=prev
Jsummers at 19:34, 2 July 2016
2016-07-02T19:34:14Z
<p></p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 19:34, 2 July 2016</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>|subcat=Compression</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>|subcat=Compression</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>|extensions={{ext|g3}}</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>|extensions={{ext|g3}}</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">|mimetypes={{mimetype|image/g3fax}}</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>|pronom={{PRONOM|x-cmp/14}}</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>|pronom={{PRONOM|x-cmp/14}}</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>}}</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>}}</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [[Netpbm]]: g3topbm, pbmtog3</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [[Netpbm]]: g3topbm, pbmtog3</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [[ImageMagick]] (format named "FAX")</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [[ImageMagick]] (format named "FAX")</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">== Links ==</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* RFC 1494: Equivalences between 1988 X.400 and RFC-822 Message Bodies</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* RFC 2159: A MIME Body Part for FAX</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Graphics]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Graphics]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Fax]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Fax]]</div></td></tr>
</table>
Jsummers
http://fileformats.archiveteam.org/index.php?title=CCITT_Group_3&diff=24512&oldid=prev
Marco at 14:42, 22 February 2016
2016-02-22T14:42:18Z
<p></p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 14:42, 22 February 2016</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Software ==</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Software ==</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* [[Konvertor]]</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [[Netpbm]]: g3topbm, pbmtog3</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [[Netpbm]]: g3topbm, pbmtog3</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [[ImageMagick]] (format named "FAX")</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [[ImageMagick]] (format named "FAX")</div></td></tr>
</table>
Marco
http://fileformats.archiveteam.org/index.php?title=CCITT_Group_3&diff=23743&oldid=prev
Jsummers: /* Related formats */
2015-11-11T21:39:50Z
<p><span dir="auto"><span class="autocomment">Related formats</span></span></p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 21:39, 11 November 2015</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Related formats ==</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Related formats ==</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">Many of the formats listed in the [[Fax formats]] article use CCITT Group 3 compression.</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>In a [[TIFF]] file, compression codes 2, 3, and 32771 are varieties of CCITT Group 3 compression.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>In a [[TIFF]] file, compression codes 2, 3, and 32771 are varieties of CCITT Group 3 compression.</div></td></tr>
</table>
Jsummers
http://fileformats.archiveteam.org/index.php?title=CCITT_Group_3&diff=23741&oldid=prev
Jsummers at 21:36, 11 November 2015
2015-11-11T21:36:16Z
<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>{{FormatInfo</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>{{FormatInfo</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>|formattype=electronic</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>|formattype=electronic</div></td></tr>
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<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>'''CCITT Group 3''' is a lossless compressed data format for bi-level images. It is also known as '''T4''', '''T.4''', '''Fax3''', '''Group 3''', '''G3''', or '''ITU-T Fax Group 3'''. It is one of the formats used by fax <del class="diffchange diffchange-inline">machines</del>. It is usually embedded in another image file format such as [[TIFF]], but can be stored in a file by itself.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>'''CCITT Group 3''' is a lossless compressed data format for bi-level images. It is also known as '''T4''', '''T.4''', '''Fax3''', '''Group 3''', '''G3''', or '''ITU-T Fax Group 3'''. It is one of the formats used by <ins class="diffchange diffchange-inline">[[</ins>fax <ins class="diffchange diffchange-inline">machine]]s</ins>. It is usually embedded in another image file format such as [[TIFF]], but can be stored in a file by itself.</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>It comes in two main varieties: so-called '''1-dimensional''' and '''2-dimensional''' (though both are used on 2-dimensional images). The 1-dimensional variety uses [[Modified Huffman]] (MH) compression, and the 2-dimensional variety uses [[Modified READ]] (MR) compression.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>It comes in two main varieties: so-called '''1-dimensional''' and '''2-dimensional''' (though both are used on 2-dimensional images). The 1-dimensional variety uses [[Modified Huffman]] (MH) compression, and the 2-dimensional variety uses [[Modified READ]] (MR) compression.</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [[ImageMagick]] (format named "FAX")</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [[ImageMagick]] (format named "FAX")</div></td></tr>
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<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>[[Category:<del class="diffchange diffchange-inline">Compression</del>]]</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>[[Category:<ins class="diffchange diffchange-inline">Graphics</ins>]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Fax]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Fax]]</div></td></tr>
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Jsummers
http://fileformats.archiveteam.org/index.php?title=CCITT_Group_3&diff=23328&oldid=prev
Jsummers: Category:Fax
2015-09-04T23:54:12Z
<p>Category:Fax</p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 23:54, 4 September 2015</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Compression]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Compression]]</div></td></tr>
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Jsummers