Combining SVD-DCT Image Watermarking Scheme Based on Perona-Malik Diffusion

Autor:	Sarra Belilita, Nourredine Amardjia, Tewfik Bekkouche, Imen Nouioua
Jazyk:	angličtina
Rok vydání:	2019
Předmět:	digital image watermarking 2d discrete cosine transform singular value decomposition perona-malik diffusion Electrical engineering. Electronics. Nuclear engineering TK1-9971
Zdroj:	Elektronika ir Elektrotechnika, Vol 25, Iss 4, Pp 68-74 (2019)
Druh dokumentu:	article
ISSN:	1392-1215 2029-5731
DOI:	10.5755/j01.eie.25.4.23973
Popis:	In this paper, we propose an efficient image watermarking scheme based on combining Singular Value Decomposition (SVD) and Discrete Cosine Transform (DCT) transforms. The main idea consists of exploiting results obtained by the well-known Perona-Malik diffusion applied in image de-noising in watermarking domain by selecting significant blocks to embed a binary logo watermark. After applying the DCT on the selected blocks, the SVD is performed on each of these transformed blocks to modify a few numbers of its U matrix elements according to some defined conditions. Computer simulation and experimental results prove the efficiency of our proposed method against image processing attacks and outperform several previous schemes in terms of imperceptibility and robustness.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/838b524f19d64c169a91c64154a55d7d Zobrazit plný text záznamu View record in DOAJ