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画像内領域の特性に応じたウェーブレット変換適応電子透かし


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Title: 画像内領域の特性に応じたウェーブレット変換適応電子透かし
Other Titles: An Adaptive Watermarking Scheme Based on Wavelet Transform to Characterestics of Area in An Image
Authors: 黒田, 英夫 / 尾崎, 直弘 / 山田, 敦士 / 藤村, 誠 / 濱野, 和正
Authors (alternative): Kuroda, Hideo / Ozaki, Naohiro / Yamada, Atsushi / Fujimura, Makoto / Hamano, Kazumasa
Issue Date: Jan-2003
Citation: 長崎大学工学部研究報告 Vol.33(60) p.65-70, 2003
Abstract: Though difficult to see in complicated areas in an image, picture quality degradations are easily perceived in flat areas by human visual ability. So it is important to develop a technique which is able to embed watermarking information acording to the respective characterestics of each area. In this paper, we propose adaptive watermarking schemes based on wavelet transform to characterestics of areas in an image. Simulation results show that the proposed method improved both SNR and robustness against attacks such us lossy compression like JPEG.
URI: http://hdl.handle.net/10069/5245
ISSN: 02860902
Type: Departmental Bulletin Paper
Appears in Collections:Volume 33, No. 60

Citable URI : http://hdl.handle.net/10069/5245

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