Halftone image watermarking based on visual cryptography

Autor:	Ahmed Bouridane, Z. Dibi, N. Atamna, Z. Tifedjadjine
Rok vydání:	2005
Předmět:	Halftone Theoretical computer science Computer science business.industry ComputingMilieux_LEGALASPECTSOFCOMPUTING Cryptography Watermark Visual cryptography Image (mathematics) Digital image Computer vision Artificial intelligence business Digital watermarking Image based
Zdroj:	ICECS
DOI:	10.1109/icecs.2005.4633557
Popis:	The advancement of digital image emphasizes the need for copyright protection. Digital watermarking is one of the most popular techniques and a very active research area for copyright protection of documents and media. In this paper, we propose a watermark technique for halftone image based on visual cryptography technique. The proposed method is simple and efficient. We introduce error diffusion techniques for halftoning; three most known filters of error were used: Floyd and Steinberg, Jarvis and Judice and Ninke and Stucki methods. The system security is guaranteed by using a visual cryptography approach to generate two random shares of a watermark; public watermark and secret watermark.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b2b524bd86428b9e835583174ede3b1d https://doi.org/10.1109/icecs.2005.4633557 Zobrazit plný text záznamu