https://oldwiki.cpcwiki.eu/index.php?action=history&feed=atom&title=Run_Length_Encoding 2026-08-28T10:03:09Z Revision history for this page on the wiki MediaWiki 1.25.1 https://oldwiki.cpcwiki.eu/index.php?title=Run_Length_Encoding&diff=33016&oldid=prev 2009-10-08T21:47:08Z

<p></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 21:47, 8 October 2009</td> </tr><tr><td colspan="2" class="diff-lineno" id="L1" >Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Run Length Encoding is a very simple form of file <del class="diffchange diffchange-inline">compression</del>. It compresses long sequences of the same byte to an indicator code, byte value, and count. For example, 48 spaces (character code &amp;20) might be encoded as &amp;E9 &amp;30 &amp;20, assuming the indicator code was &amp;E9.</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Run Length Encoding is a very simple form of file <ins class="diffchange diffchange-inline">[[Data Compression|Compression]]</ins>. It compresses long sequences of the same byte to an indicator code, byte value, and count. For example, 48 spaces (character code &amp;20) might be encoded as &amp;E9 &amp;30 &amp;20, assuming the indicator code was &amp;E9.</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>CPC programs to use RLE techniques included:</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>CPC programs to use RLE techniques included:</div></td></tr> <!-- diff cache key wikidb:diff:version:1.11a:oldid:33015:newid:33016 --> </table>

MacDeath https://oldwiki.cpcwiki.eu/index.php?title=Run_Length_Encoding&diff=33015&oldid=prev 2009-10-08T21:46:20Z

<p></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 21:46, 8 October 2009</td> </tr><tr><td colspan="2" class="diff-lineno" id="L11" >Line 11:</td> <td colspan="2" class="diff-lineno">Line 11:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Later compression programs (such as [[Cheese]] and [[Columbia]]) used the more advanced [[LZW]] algorithm.</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Later compression programs (such as [[Cheese]] and [[Columbia]]) used the more advanced [[LZW]] algorithm.</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Category:DATA Storage]]</ins></div></td></tr> <!-- diff cache key wikidb:diff:version:1.11a:oldid:13549:newid:33015 --> </table>

MacDeath https://oldwiki.cpcwiki.eu/index.php?title=Run_Length_Encoding&diff=13549&oldid=prev 2007-01-04T23:56:19Z

<p></p> <p><b>New page</b></p><div>Run Length Encoding is a very simple form of file compression. It compresses long sequences of the same byte to an indicator code, byte value, and count. For example, 48 spaces (character code &amp;20) might be encoded as &amp;E9 &amp;30 &amp;20, assuming the indicator code was &amp;E9.<br /> <br /> CPC programs to use RLE techniques included:<br /> <br /> * [[SQ23]]<br /> * [[Crunch]] by [[Crown]]<br /> * [[Newsweep]] ([[CP/M]])<br /> * [[PowerPage]] (for saved pages)<br /> * [[Stop Press]] (for clip art)<br /> * [[MicroDesign]] (for all saved graphics)<br /> <br /> Later compression programs (such as [[Cheese]] and [[Columbia]]) used the more advanced [[LZW]] algorithm.</div>

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