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http://dx.doi.org/10.3745/KIPSTB.2003.10B.6.629

A adaptively robust method of DCT-based watermarking  

Jun, Young-Min (숭실대학교 대학원 컴퓨터학부)
Kim, Gye-Young (숭실대학교 컴퓨터학부)
Choi, Hyung-Il (숭실대학교 미디어학부)
Publication Information
The KIPS Transactions:PartB / v.10B, no.6, 2003 , pp. 629-638 More about this Journal
Abstract
In this paper, we propose an improved method of watermarking to increase the invisibility of a watermark and robustness against attacks for the purpose of removing the embedded watermark. The proposed method adaptively selects DCT blocks and determines position and intensity for watermarking based on the characteristics of human visual system. The used features are texture, luminance and contrast. We show the experimental results against image processing attacks such as cropping, image enhancement, low pass filtering, and JPEG compression, and then discuss the performance of the proposed method.
Keywords
Digital Watermarking; Texture Analysis; Luminance Analysis; Contrast Analysis; Adaptiveness; Robustness;
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