Backward Filtering of Images by Iterating Forward Filters

An-shui YU; Naoki Ono; Kohei Inoue; Hara Kenji; Kiichi Urahama

Backward Filtering of Images by Iterating Forward Filters

An-shui YU
, Naoki Ono
, Kohei Inoue
, Hara Kenji
, Kiichi Urahama

研究成果: ジャーナルへの寄稿 › 学術誌 › 査読

抄録

Given a filtering operation for images, we consider a problem for inverting it. If the algorithm of the original,i.e. forward filter is explicitly expressed, its inversion is tractable. However, if its algorithm is unknown exactly, it is hard to be reversed. We present, in this paper, a simple solution for this problem only by iterating the forward filter. This method can be used for a wide class of image filters including ones built in photo-retouch softwares. Examples are shown for smoothing, sharpening, halftoning and resizing filters.

本文言語	英語
ページ（範囲）	197-203
ページ数	7
ジャーナル	Journal of the Institute of Industrial Applications Engineers
巻	5
号	4
出版ステータス	出版済み - 10月 25 2017

引用スタイル

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AU - Ono, Naoki

AU - Inoue, Kohei

AU - Kenji, Hara

AU - Urahama, Kiichi

PY - 2017/10/25

Y1 - 2017/10/25

N2 - Given a filtering operation for images, we consider a problem for inverting it. If the algorithm of the original,i.e. forward filter is explicitly expressed, its inversion is tractable. However, if its algorithm is unknown exactly, it is hard to be reversed. We present, in this paper, a simple solution for this problem only by iterating the forward filter. This method can be used for a wide class of image filters including ones built in photo-retouch softwares. Examples are shown for smoothing, sharpening, halftoning and resizing filters.

AB - Given a filtering operation for images, we consider a problem for inverting it. If the algorithm of the original,i.e. forward filter is explicitly expressed, its inversion is tractable. However, if its algorithm is unknown exactly, it is hard to be reversed. We present, in this paper, a simple solution for this problem only by iterating the forward filter. This method can be used for a wide class of image filters including ones built in photo-retouch softwares. Examples are shown for smoothing, sharpening, halftoning and resizing filters.

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EP - 203

JO - Journal of the Institute of Industrial Applications Engineers

JF - Journal of the Institute of Industrial Applications Engineers

IS - 4

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Backward Filtering of Images by Iterating Forward Filters

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引用スタイル