Title :
HVP-Based Efficient Watermarking Scheme in DCT Domain
Author :
Park, Ki-hong ; Kim, Yoon-Ho ; Kang, Heau-Jo
Author_Institution :
Mokwon Univ., Daejeon
Abstract :
This paper presents a transform-based watermarking scheme based on human visual system. Human visual parameter (HVP) such as sensitivity of contrast (SoC), texture degree, entropy, and standard deviation are useful to ensure the imperceptivility of watermark image. In this approach, we involved these HVP to select the optimal coefficients region in which watermark will be embedded. Several experiments are performed to demonstrate the effectiveness and appropriateness of the proposed scheme. According to experimental results, SoC parameter is superior in smooth image. Meanwhile, statistical characteristics provide good results in rough image. It also suggest that it is more robust and efficient than other state-of the-art algorithm from the literature in terms of the selected spatial-domain watermarking schemes.
Keywords :
discrete cosine transforms; entropy; image texture; transform coding; watermarking; DCT domain; entropy; human visual parameter; sensitivity of contrast; standard deviation; texture degree; watermark image; watermarking scheme; Brightness; Discrete cosine transforms; Discrete wavelet transforms; Frequency; Humans; Pervasive computing; Robustness; Signal processing algorithms; Spatial resolution; Watermarking;
Conference_Titel :
Intelligent Pervasive Computing, 2007. IPC. The 2007 International Conference on
Conference_Location :
Jeju City
Print_ISBN :
978-0-7695-3006-2
DOI :
10.1109/IPC.2007.110