ブロックの分散・平均値を用いた画像電子透かし

Material type: 文書・図像類

Author: 桃井, 秀人ほか

Publisher: 愛知工業大学

Publication date: 2005-03-31

Material Format: Digital

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Note (General)：: This paper presents a watermarking algorithm using statistics of image blocks such as their pixel value variances and averages, and demonstrates its p...

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Material Type: 文書・図像類
Title: ブロックの分散・平均値を用いた画像電子透かし
Author/Editor: 桃井, 秀人
中村, 栄治
沢田, 克敏
Author Heading: 桃井, 秀人
中村, 栄治
沢田, 克敏
Publication, Distribution, etc.: 愛知工業大学
Publication Date: 2005-03-31
Publication Date (W3CDTF): 2005-03-31
Alternative Title: A Watermarking Algorithm for Images Using Block Variances and Averages
Periodical title: 愛知工業大学研究報告. B, 専門関係論文集 = Bulletin of Aichi Institute of Technology. Part B
No. or year of volume/issue: 40
Volume: 40
Pages: 77-80
ISSN (Periodical Title): ISSN : 0387-0812
Text Language Code: jpn
Target Audience: 一般
Note (General): This paper presents a watermarking algorithm using statistics of image blocks such as their pixel value variances and averages, and demonstrates its performance via simulation experiment results. This algorithm utilizes human vision characteristics such that subjective image quality degradation is little in edge and texture portions, and embeds watermark information in a way that blocks with higher variance have priorities for their watermark information embedding. Furthermore, in the algorithm, pixel values are quantized beforehand by selecting an appropriate number of blocks in order to enhance its robustness against attacks trying to erase the watermarked information. The simulation experiment results show that the algorithm can enhance its robustness against quantization attacks while suppress image quality degradation.
identifier:http://repository.aitech.ac.jp/dspace/handle/11133/1241
Format (IMT): application/pdf
Source: http://repository.aitech.ac.jp/dspace/bitstream/11133/1241/1/%e7%b4%80%e8%a6%8140%e5%8f%b7B%28P77-80%29.pdf
http://repository.aitech.ac.jp/dspace/bitstream/11133/1241/1/%e7%b4%80%e8%a6%8140%e5%8f%b7B%28P77-80%29.pdf
Access Restrictions: 限定公開
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 愛知工業大学 : 愛知工業大学学術情報リポジトリ