A Novel Printable Watermarking Method in Dithering Halftone Images. (30th May 2016)

• Record Type: Journal Article
• Authors: Lee, Hui-Lung; Chen, Ling-Hwei
• Other Names: Reisslein Martin Academic Editor.
• Is Part Of: Advances in multimedia. Volume 2016(2016)
• Publication Date: 2016-05-30
• Subjects: Multimedia systems -- Periodicals; Computer networks -- Periodicals; Multimédia; Réseaux d'ordinateurs; Computer networks; Multimedia systems; Periodicals; 006.7
• DOI: 10.1155/2016/4901609
• Languages: English
• ISSNs: 1687-5680

Abstract

Abstract : Halftone images are commonly printed on books, newspapers, and magazines. How to protect the copyright of these printed halftone images becomes an important issue. Digital watermarking provides a solution for copyright protection. In this paper, we will propose a novel printable watermarking method for dithering halftone images. Based on downsampling and the property of a dispersed dithering screen, the method can resist cropping, tampering, and print-and-scan process attacks. In addition, comparing to Guo et al.'s method, the experimental results show that the proposed method provides higher robustness for the above-mentioned attacks and better visual quality in the high-frequency regions of halftone images.