Introduction - If you have any usage issues, please Google them yourself
Dictionary coding method is an important class of lossless compression techniques, the main idea is: Use the information in front of encoded index table (ie, dictionary), from looking for information to be encoded with information to create the biggest match in front of the part, and the output matching portion of the index table (dictionary) in the corresponding index value as part of the code matches the results. The key lies in the process of encoding and decoding, how to build and extend dictionaries.