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<p>volume into smaller files. The most common strategy is to look for patterns or trends in the pixel values, then store a parameterized form of the pattern instead of the original data. Common raster compression algorithms include <a href="page.php?w=run-length_encoding">run-length encoding</a> (RLE), <a href="page.php?w=JPEG">JPEG</a>, <a href="page.php?w=LZ77_and_LZ78">LZ</a> (the basis for <a href="page.php?w=PNG">PNG</a> and <a href="page.php?w=Zip_%28file_format%29">ZIP</a>), <a href="page.php?w=Lempel-Ziv-Welch">Lempel-Ziv-Welch</a> (LZW)</p><p>
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