[발표논문] 수정된 디지털 이미지에서 기하학적 변형 및 필터링 변형 영역을 식별하는 기법

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caudsil
작성일
2017-10-16 08:21
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수정된 디지털 이미지에서 기하학적 변형 및 필터링 변형 영역을 식별하는 기법
Identification Method of Geometric and Filtering Change Regions in Modified Digital Images


저자: 황민구 Min-Gu Hwang
조병주 Byung-Joo Cho
하동환 Dong-Hwan Har

Journal of Korea Multimedia Society Vol.15, No.11


abstract

Recently, digital images are extremely forged by editors or advertisers. Also, amateurs can modify images throughout easy editing programs. In this study, we propose identification and analytical methods for the modified images to figure out those problems. In modified image analysis, we classify two parts; a filtering change and a geometric change. Those changes have an algorithm based on interpolation so that we propose the algorithm which is able to analyze a trace on a modified area. With this algorithm, we implement a detection map of interpolation using minimum filter, laplacian algorithm, and maximum filter. We apply the proposed algorithm to modified image and are able to analyze its modified trace using the detection map.


Keyword: Digital image, Modified image, Forged image, Geometric change, Image filtering, Interpolation