LZW压缩算法是一种新颖的压缩方法，它采用了一种先进的串表压缩不，将每个第一次出现的串放在一个串表中，用一个数字来表示串，压缩文件只存贮数字，则不存贮串，从而使图象文件的压缩效率得到较大的提高。-LZW compression algorithm is a novel compression method that uses an advanced string table compression, each first occurrence of string in a string table, with a figure to represent the string, only the compressed file storage number string is not stored, so that compressed image file greatly improved efficiency.