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Please use this identifier to cite or link to this item: http://hdl.handle.net/10928/600

Title: 電子透かし情報が埋め込まれた掲示物に対するガラス戸と水滴が及ぼす影響
Other Titles: Influence of Glass Window and Rain Drops for Watermarking Information Embedded in Printed Medium
Authors: 田畑, 菜々子
伏屋, 誠人
和田, 直哉
小池, 淳
村上, 仁己
TABATA, Nanako
FUSEYA, Masato
WADA, Naoya
KOIKE, Atsushi
Keywords: digital watermark
printed medium
digital information
glass window
rain drops
Issue Date: 1-Dec-2014
Publisher: 成蹊大学理工学部
Abstract: Recently a technique to detect digital information is attracted using a digital watermark technology by printed matter such as still images. This is the technique that are necessary when we want to embed information in a paper medium such as a magazine and a newspaper, the poster which a photograph is placed in in the limited space. Generally, a printed medium on the bulletin board is protected with a glass window to avoid influence on rain or dirt when the printed medium is posted up outside. In this paper, we considered how a glass window and rain drops on the printed medium affect a detection rate of embedded digital information or picture quality. We investigated that the glass window and rain drops affect what kind of effect on the frequency domain of the printed medium. Also, a most suitable PSNR level at the time of embedding were considered. As a result, it is concluded that a most suitable SNR is around 27.5dB.
URI: http://hdl.handle.net/10928/600
Appears in Collections:第51巻第2号

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