Title :
On the impact of histogram sparseness on some lossless image compression techniques
Author :
Pinho, Armando J.
Author_Institution :
Dept. de Electron. e Telecommun., Aveiro Univ., Portugal
fDate :
6/23/1905 12:00:00 AM
Abstract :
Most of the image compression techniques currently available were designed mainly with the aim of compressing continuous-tone natural images. However, if this assumption is not verified, such as in the case of histogram sparseness, a degradation in compression performance may occur. In this paper, we analyze the impact of histogram sparseness in three state-of-the-art lossless image compression techniques: JPEG-LS, CALIC and lossless JPEG-2000. Moreover, we propose a simple procedure for on-line histogram packing, which holds nearly the same improvement as offline histogram packing. Results of its effectiveness when associated with JPEG-LS are presented
Keywords :
code standards; data compression; image coding; CALIC; JPEG-LS; compression performance; continuous-tone natural images; degradation; histogram sparseness; lossless JPEG-2000; lossless image compression techniques; on-line histogram packing; Biomedical imaging; Degradation; Histograms; IEC standards; ISO standards; Image analysis; Image coding; Performance loss; Telecommunications; Transform coding;
Conference_Titel :
Image Processing, 2001. Proceedings. 2001 International Conference on
Conference_Location :
Thessaloniki
Print_ISBN :
0-7803-6725-1
DOI :
10.1109/ICIP.2001.958146
