Dictionary-type data compression for gray-scale images Conference Paper uri icon


  • 1995 IEEE. We explore modifications of the LZ77 type dictionary compression algorithm so that it can compress gray-scale images efficiently. We consider the following modifications to the LZ77 compression: (1) Limiting the positions to start the pattern match in the search window to four neighboring pixels of the first pixel in the lookahead buffer. (2) Using an approximate matching. (3) Adaptively changing the lookahead buffer size. (4) Combination of approximate matching and exact matching using a non-greedy parsing algorithm. Our method is better than the UNIX compress and worst JPEG, and sometimes better than the best JPEG.

name of conference

  • Conference Record of The Twenty-Ninth Asilomar Conference on Signals, Systems and Computers

published proceedings

  • 2011 Conference Record of the Forty Fifth Asilomar Conference on Signals, Systems and Computers (ASILOMAR)

author list (cited authors)

  • Nagumo, H., Lu, M. i., & Watson, K.

citation count

  • 0

complete list of authors

  • Nagumo, H||Lu, Mi||Watson, K

publication date

  • January 1996