Copyright Protection against Print-and-Scan Operations by Watermarking for Color Images Using Coding and Synchronization of Peak Locations in Frequency Domain *
作者： Wen-Hsiang Tsai , Yen-Chung Chiu
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摘要: A watermarking method for copyright protection of color images against print-and-scan operations is proposed. watermark embedded in an input image as coefficient-value peaks that are circularly and symmetrically distributed a middle band the discrete Fourier transform (DFT) domain image. By detecting robust DFT reproduced obtained by scanning printed version watermarked image, we can extract to verify Experimental results given prove feasibility proposed method.
nctu.edu.tw参考文章(5)
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