標題: Copyright protection against print-and-scan operations by watermarking for color images using coding and synchronization of peak locations in frequency domain
作者: Chiu, YC
Tsai, WH
資訊工程學系
Department of Computer Science
關鍵字: digital watermarking;color image;copyright protection;print-and-scan operations;discrete Fourier transform;reproduced image
公開日期: 1-May-2006
摘要: A watermarking method for copyright protection of color images against print-and-scan operations is proposed. A watermark is embedded in an input image as coefficient-value peaks that are circularly and symmetrically distributed ill a middle band of the discrete Fourier transform (DFT) domain of the input image. By detecting the robust peaks in the DFT domain of a reproduced image obtained by scanning a printed version of a watermarked image, we can extract the embedded watermark to verify the copyright of the reproduced image. Experimental results are given to prove the feasibility of the proposed method.
URI: http://hdl.handle.net/11536/12311
ISSN: 1016-2364
期刊: JOURNAL OF INFORMATION SCIENCE AND ENGINEERING
Volume: 22
Issue: 3
起始頁: 483
結束頁: 496
Appears in Collections:Conferences Paper