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Content Adaptive Visible Watermarking during Ordered Dithering Hao LUO Jeng-Shyang PAN Zhe-Ming LU Publication IEICE TRANSACTIONS on Information and Systems Vol.E90-D No.7 pp.1113-1116 Publication Date: 2007/07/01 Online ISSN: 1745-1361 DOI: 10.1093/ietisy/e90-d.7.1113 Print ISSN: 0916-8532 Type of Manuscript: LETTER Category: Application Information Security Keyword: content adaptive, visible watermarking, ordered dithering, halftone image, Full Text: PDF(244KB)>>
Summary: This letter presents an improved visible watermarking scheme for halftone images. It incorporates watermark embedding into ordered dither halftoning by threshold modulation. The input images include a continuous-tone host image (e.g. an 8-bit gray level image) and a binary watermark image, and the output is a halftone image with a visible watermark. Our method is content adaptive because it takes local intensity information of the host image into account. Experimental results demonstrate effectiveness of the proposed technique. It can be used in practical applications for halftone images, such as commercial advertisement, content annotation, copyright announcement, etc. | ||||||||||
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