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拡張制御値を用いた改良収束型浮動しきい値設定による画像二値化

拡張制御値を用いた改良収束型浮動しきい値設定による画像二値化

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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: 2012/05/01

タイトル(英語): Image Thresholding by Improved Convergent Floating Thresholding Method using Extended Control Value

著者名: 植野 多貴(香川大学工学部知能機械システム工学科),山口 順一(香川大学工学部知能機械システム工学科)

著者名(英語): Kazuki Ueno (Department of Intelligent Mechanical Systems Engineering Faculty of Engineering, Kagawa University), Jun'ichi Yamaguchi (Department of Intelligent Mechanical Systems Engineering Faculty of Engineering, Kagawa University)

キーワード: 二値化,収束型浮動しきい値,判別分析,情景画像  Thresholding,Convergent floating threshold,Discriminant analysis,Scenery image

要約(英語): In this paper, the authors propose a threshold setting method for binary image. This method consists of two steps which are different threshold calculating algorithm. First step is an improved model of Convergent Floating Thresholding Method, by switching between two control values for updating a tentative threshold. By the step, thresholding of a boundary area of gray level change is performed. Second step is composed of Discriminant Analysis Method and is applied to area of flat on gray level. Feature of the proposed method is to compare gray level with two final tentative thresholds which are obtained using two coefficients as control value. According to the method, it is possible to decrease a thresholding error which occurs in case of low contrast and brightness change. Also a pattern in likeness gray level area can be clarified. The proposed method and the conventional methods were tested, using general scene images of outdoor. The result showed that the proposed method can output good quality binary images relatively and is useful for thresholding of the scene image.

本誌: 電気学会論文誌C(電子・情報・システム部門誌) Vol.132 No.5 (2012) 特集:新たな産業応用を可能にする無線通信技術

本誌掲載ページ: 759-765 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/132/5/132_5_759/_article/-char/ja/

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