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Warning: Cannot modify header information - headers already sent in /usr/local/www/mediawiki/includes/WebResponse.php on line 38 http://fileformats.archiveteam.org/index.php?action=history&feed=atom&title=Canonical_Huffman_codeCanonical Huffman code - Revision history2024-12-27T07:20:52ZRevision history for this page on the wikiMediaWiki 1.19.2 Warning: require(): Unable to allocate memory for pool. in /usr/local/www/mediawiki/includes/AutoLoader.php on line 1007 http://fileformats.archiveteam.org/index.php?title=Canonical_Huffman_code&diff=37949&oldid=prevJsummers at 11:40, 12 September 20202020-09-12T11:40:55Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>A '''Canonical Huffman code''' is essentially a set of tiebreaking rules that establish a single "canonical" Huffman codebook (see [[Huffman coding]]), given the set of encoded symbols and their corresponding code lengths (in bits). The main benefit of using a canonical Huffman code is that it reduces the amount of information needed to represent a Huffman codebook. Specifically, you only need to know the code length of each symbol.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>A '''Canonical Huffman code''' is essentially a set of tiebreaking rules that establish a single "canonical" Huffman codebook (see [[Huffman coding]]), given the set of encoded symbols and their corresponding code lengths (in bits). The main benefit of using a canonical Huffman code is that it reduces the amount of information needed to represent a Huffman codebook. Specifically, you only need to know the code length of each symbol.</div></td></tr>
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<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>From a file format perspective, the term is normally used with "static" (non-adaptive) Huffman compression schemes in which the Huffman codebook to use is stored in the file prior to the encoded data. Canonical Huffman coding is common, though not universal, in such formats.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>From a file format perspective, the term is normally used with "static" (non-<ins class="diffchange diffchange-inline">[[Adaptive Huffman coding|</ins>adaptive<ins class="diffchange diffchange-inline">]]</ins>) Huffman compression schemes in which the Huffman codebook to use is stored in the file prior to the encoded data. Canonical Huffman coding is common, though not universal, in such formats.</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>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [[Wikipedia: Canonical Huffman code]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [[Wikipedia: Canonical Huffman code]]</div></td></tr>
</table>Jsummershttp://fileformats.archiveteam.org/index.php?title=Canonical_Huffman_code&diff=37803&oldid=prevJsummers at 15:37, 30 August 20202020-08-30T15:37:57Z<p></p>
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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>
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<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>A '''Canonical Huffman code''' is essentially a set of tiebreaking rules that establish a single "canonical" Huffman codebook (see [[Huffman coding]]), given the set of encoded symbols and their corresponding code lengths (in bits). The main benefit of using a canonical Huffman code is that it reduces the amount of information needed to represent a Huffman codebook. Specifically, you only need to know <del class="diffchange diffchange-inline">that </del>code length of each symbol.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>A '''Canonical Huffman code''' is essentially a set of tiebreaking rules that establish a single "canonical" Huffman codebook (see [[Huffman coding]]), given the set of encoded symbols and their corresponding code lengths (in bits). The main benefit of using a canonical Huffman code is that it reduces the amount of information needed to represent a Huffman codebook. Specifically, you only need to know <ins class="diffchange diffchange-inline">the </ins>code length of each symbol.</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>From a file format perspective, the term is normally used with "static" (non-adaptive) Huffman compression schemes in which the Huffman codebook to use is stored in the file prior to the encoded data. Canonical Huffman coding is common, though not universal, in such formats.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>From a file format perspective, the term is normally used with "static" (non-adaptive) Huffman compression schemes in which the Huffman codebook to use is stored in the file prior to the encoded data. Canonical Huffman coding is common, though not universal, in such formats.</div></td></tr>
</table>Jsummershttp://fileformats.archiveteam.org/index.php?title=Canonical_Huffman_code&diff=37792&oldid=prevJsummers: Created page with "{{FormatInfo |formattype=electronic |subcat=Compression }} A '''Canonical Huffman code''' is essentially a set of tiebreaking rules that establish a single "canonical" Huffman..."2020-08-27T19:39:14Z<p>Created page with "{{FormatInfo |formattype=electronic |subcat=Compression }} A '''Canonical Huffman code''' is essentially a set of tiebreaking rules that establish a single "canonical" Huffman..."</p>
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A '''Canonical Huffman code''' is essentially a set of tiebreaking rules that establish a single "canonical" Huffman codebook (see [[Huffman coding]]), given the set of encoded symbols and their corresponding code lengths (in bits). The main benefit of using a canonical Huffman code is that it reduces the amount of information needed to represent a Huffman codebook. Specifically, you only need to know that code length of each symbol.<br />
<br />
From a file format perspective, the term is normally used with "static" (non-adaptive) Huffman compression schemes in which the Huffman codebook to use is stored in the file prior to the encoded data. Canonical Huffman coding is common, though not universal, in such formats.<br />
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== Links ==<br />
* [[Wikipedia: Canonical Huffman code]]</div>Jsummers