空間的特徴を用いた超低階調画像の高階調化

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2014/03/01

タイトル(英語): Highly-gradating of Ultra-low-gradation Image Using Spatial Features

著者名: 加藤　徹也（岐阜大学工学部応用情報学科），斉藤　文彦（岐阜大学工学部応用情報学科）

著者名(英語): Tetsuya Kato (Department of Information Sciences, Faculty of Engineering, Gifu University), Fumihiko Saitoh (Department of Information Sciences, Faculty of Engineering, Gifu University)

キーワード: 空間的特徴，低階調画像，高階調化，階調復元　　spatial features，low-bit image，highly-gradating，tone restoration

要約(英語): This paper proposes a method that obtains a high-tone images from the ultra-low-tone image using the spatial features. Those areas are smoothed when the adjacent tone value of attention area is continuous. On the other hand, those areas save as an edge when the adjacent tone value of attention area is discontinuous. From this premise, that attention area can be classified into six patterns by each area. And, the low-gradation image is changed into a highly-gradating image by processing with each pattern. As a result of the comparative experiments, the proposed method was better quantitatively and visually than existing methods. The proposed method can change ultra-low-tone image into naturally-Highly-gradating image.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.134 No.3 （2014） 特集：情報環境と人間の調和に向けた工学技術

本誌掲載ページ: 441-449 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/134/3/134_441/_article/-char/ja/