Second compression for pixelated images under edge-based compression algorithms: JPEG-LS as an example

Al-Khayyat, Kamal and Alshaikhli, Imad Fakhri Taha and Al-Hagery, Mohammed (2021) Second compression for pixelated images under edge-based compression algorithms: JPEG-LS as an example. Journal of Intelligent & Fuzzy Systems, 40 (6). pp. 10661-10669. ISSN 1064-1246 E-ISSN 1875-8967

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Abstract

This paper details the examination of a particular case of data compression, where the compression algorithm removes the redundancy from data, which occurs when edge-based compression algorithms compress (previously com- pressed) pixelated images. The newly created redundancy can be removed using another round of compression. This work utilized the JPEG-LS as an example of an edge-based compression algorithm for compressing pixelated images. The output of this process was subjected to another round of compression using a more robust but slower compressor (PAQ8f). The compression ratio of the second compression was, on average, 18%, which is high for random data. The results of the second compression were superior to the lossy JPEG. Under the used data set, lossy JPEG needs to sacrifice 10% on average to realize nearly total lossless compression ratios of the two-successive compressions. To generalize the results, fast general-purpose compression algorithms (7z, bz2, and Gzip) were used too.

Item Type:	Article (Journal)
Uncontrolled Keywords:	Data compression, lossless, lossy, Pixelated images, PAQ8f
Subjects:	Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Information and Communication Technology > Department of Computer Science Kulliyyah of Information and Communication Technology > Department of Computer Science
Depositing User:	Professor Imad Taha
Date Deposited:	28 Oct 2021 08:01
Last Modified:	28 Oct 2021 08:01
URI:	http://irep.iium.edu.my/id/eprint/93344

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