Improvements of data embedding in DCT compressed domain

Kok Sheik Wong, Mustafa S.Abdul Karim, Kiyoshi Tanaka

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

Abstract

While the data embedding method [1] is able to achieve high carrier capacity, it is not reversible. In this work, we improve [1] from rewritable to reversible in which case the original content can be completely reconstructed from its manipulated counterpart. The last coefficient from each 8 × 8 block is first encoded using slightly modified Huffman coding method and it is treated as part of the external information. This concatenated information will be embedded as a whole into a DCT compressed content. Although carrier capacity is slightly compromised to accommodate the last coefficients, the carrier capacity is improved by using multiple-base notational system [2]. Quality of the output content is also improved by controlling entries in the quantization table. Experiments were carried out to verify the aforementioned improvements.

Original languageEnglish
Title of host publication2011 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing, PACRIM 2011
Pages268-273
Number of pages6
DOIs
Publication statusPublished - 2011
Externally publishedYes
EventIEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM) 2011 - Victoria, Canada
Duration: 23 Aug 201126 Aug 2011
Conference number: 13th
https://ieeexplore.ieee.org/xpl/conhome/6026103/proceeding (Proceedings)

Conference

ConferenceIEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM) 2011
Abbreviated titlePACRIM 2011
CountryCanada
CityVictoria
Period23/08/1126/08/11
Internet address

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