A performance study of DCT and subband image codecs with zero-zone quantizers
M. Siva Ramkumar, Ali N. Akansu · 1998
It has been shown that zero-zone quantizers offer very good R-D tradeoffs, especially at low bit rates, in spite of their simplicity in implementation and concept. The performance of such codecs for still and moving images have been reported for a dyadic 10-band subband coder. In this paper we extend those results to other subband image codecs, and DCT, and compare their performances.