Novel digital image watermarking using Sobel Filter
Publish place: Conference on Computer Engineering and Sustainable Development with a focus on computer networking, modeling and systems security
Publish Year: 1392
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
CESD01_013
تاریخ نمایه سازی: 25 اسفند 1392
Abstract:
Using filters in digital image watermarking makes improvement in the criterion of the watermarking. Watermarking in the edges of the images by using the filters such as Sobel filter operates much more improvements in the imperceptibility of the watermarking rather than not using the edge detection embedding. In this paper, the fact that Human Visual System (HVS) is less sensitive to distortion around edges and textured areas of the image compared to distortion in smooth area is exploited. This paper is presented the novel non-blind watermarking by using the Sobel filter in the Discrete Cosine Transform (DCT) domain. Because of existence of noise near edges of images in the Discrete Wavelet Transform (DWT) the results show that embedding in the DCT domain has better imperceptibility rather than DWT domain.
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Authors
Seyed Sahand Mohammadi Ziabari
Master of Science student, Organization :Malek Ashtar University of Technology
Reza Ebrahimi Atani
Assistant Professor , Organization : Guilan University
Kiyan Keyghobad
Assistant Professor, Organization : Malek Ashtar University of Technology
Abdolmajid Riazi
Assistant Professor, Organization : Malek Ashtar University of Technology
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