Pixel grouping of digital images for reversible data hiding

Hasib Sultan Abdul and Nyeem Hussain Md Abu: Pixel grouping of digital images for reversible data hiding. In: Acta cybernetica, (24) 4. pp. 663-678. (2020)

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Abstract

Pixel Grouping (PG) of digital images has been a key consideration in recent development of the Reversible Data Hiding (RDH) schemes. While a PG kernel with neighborhood pixels helps compute image groups for better embedding rate-distortion performance, only horizontal neighborhood pixel group of size 1×3 has so far been considered. In this paper, we formulate PG kernels of sizes 3×1, 2×3 and 3×2 and investigate their effect on the rate-distortion performance of a prominent PG-based RDH scheme. Specially, a kernel of size 3×2 (or 2×3) that creates a pair of pixel-trios having triangular shape and offers a greater possible correlation among the pixels. This kernel thus can be better utilized for improving a PG-based RDH scheme. Considering this, we develop and present an improved PG-based RDH scheme and the computational models of its key processes. Experimental results demonstrated that our proposed RDH scheme offers reasonably better  embedding rate-distortion performance than the original scheme.

Item Type:	Article
Journal or Publication Title:	Acta cybernetica
Date:	2020
Volume:	24
Number:	4
ISSN:	0324-721X
Page Range:	pp. 663-678
Language:	English
Publisher:	University of Szeged, Institute of Informatics
Place of Publication:	Szeged
Related URLs:	http://acta.bibl.u-szeged.hu/71734/
DOI:	10.14232/actacyb.277104
Uncontrolled Keywords:	Kibernetika
Additional Information:	Bibliogr.: p. 676-678. ; összefoglalás angol nyelven
Subjects:	01. Natural sciences 01. Natural sciences > 01.02. Computer and information sciences
Date Deposited:	2021. Feb. 05. 12:35
Last Modified:	2022. Jun. 21. 09:22
URI:	http://acta.bibl.u-szeged.hu/id/eprint/71762

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