Exposing digital forgeries by detecting traces of smoothing

Ying Chen*, Peng Zhao, Yu Ping Wang

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

1 引用 (Scopus)

摘要

With powerful computer, high-resolution digital cameras, and sophisticated photo editing software, users can easily manipulate and alter digital images as they wish. Although good forgeries may not be perceptible by human eyes because no visual clues of tampering are left, they may leave some traces of digital tampering that can not be avoided in the media during tampering process. Most digital forgeries employ edge and region smoothing after the contents are manipulated or altered. This paper describes how smoothing introduces disharmony between authentic regions and tampering regions, and then presents a method to automatically detect smoothing regions at any part of an image that indicate possible tampering. The technique works well without any embedded information such as digital watermark.

源语言英语
页(从-至)59-68
页数10
期刊Ruan Jian Xue Bao/Journal of Software
19
SUPPL.
出版状态已出版 - 12月 2008
已对外发布

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