BLOCK TRUNCATION CODING WITH ENTROPY CODING

Authors
FRANTI P NEVALAINEN O
Citation
P. Franti et O. Nevalainen, BLOCK TRUNCATION CODING WITH ENTROPY CODING, IEEE transactions on communications, 43(2-4), 1995, pp. 1677-1685
Citations number
25
Categorie Soggetti
Telecommunications,"Engineering, Eletrical & Electronic
Journal title
IEEE transactions on communications → ACNP
ISSN journal
00906778
Volume
43
Issue
2-4
Year of publication
1995
Part
3
Pages
1677 - 1685
Database
ISI
SICI code
0090-6778(1995)43:2-4<1677:BTCWEC>2.0.ZU;2-I
Abstract
Block Truncation Coding (ETC) is a simple and fast image compression a lgorithm which achieves constant bit rate of 2.0 bits per pixel, The m ethod is however suboptimal. In the present paper we propose a modific ation of ETC in which the compression ratio will be improved by coding the quantization data and the bit plane by arithmetic coding with an adaptive modelling scheme. The results compare favorable with other ET C variants. The bit rate for test image Lena is 1.53 bits per pixel wi th the mean square error of 16.51.