チン　ナスン
  陳　那森
   所属   経営学部 経営学科
   職種   教授
言語種別 英語
発行・発表の年月 2002/07
形態種別 学術論文
査読 査読あり
標題 an Effective Steganographic Method for Palette Images
執筆形態 共著
掲載誌名 PacificRim Workshop on Digital Steganography 2002 (STEG'02) 頁数：9
巻・号・頁 75-83頁
著者・共著者 Nasen CHEN, Takeshi OGIHARA,Yukio KANEDA
概要 In this paper, we propose an effective steganographic method for palette images. The method can embed one or more bits per pixel into a palette image while it is made from the original full-color image with color reduction. Other embedding methods do not modify the palette of the image. We will show that a well-organized palette makes it possible to embed a lot of data into the image with little deterioration in quality. As the results of experiments, if at most one bit is embedded into each pixel, the quality of images made by our method is not inferior to that made by ordinary color reduction without embedding. Moreover, our method can control the amount of data embedded into an image by adjusting the parameters. Thus our method would be useful to embed considerable amount of data into images, if the requirement for the quality of images is not so severe.