What is lzw coding?



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Lempel–Ziv–Welch is a universal lossless data compression algorithm created by Abraham Lempel, Jacob Ziv, and Terry Welch. LZW compression uses a code table, with 4096 as a common choice for the number of table entries. Lempel–Ziv–Welch (LZW) is a universal lossless data compression algorithm created by Abraham Lempel, Jacob Ziv, and Terry Welch. LZW compression is the compression of a file into a smaller file using a tablebased lookup algorithm invented by Abraham Lempel Jacob Ziv and Terry Welc. The LZW method achieves compression by using codes 256 through 4095 to represent sequences of bytes.



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