期刊
IEEE SIGNAL PROCESSING LETTERS
卷 22, 期 3, 页码 327-331出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LSP.2014.2359033
关键词
Image forensics; overshoot artifact; sharpening detection; unsharp masking sharpening
资金
- National Natural Science Foundation of China [61003297, U1135001, 61202415]
- NSF of Guangdong Province [S2013010011806]
- Shenzhen Peacock Program [KQCX20120816160011790]
- Knowledge Innovation Program of Shenzhen [JCYJ20130401170306848]
Unsharp masking (USM) sharpening is a basic technique for image manipulation and editing. In recent years, the detection of USM sharpening has attracted attention from image forensics point of view. After USM sharpening, overshoot artifacts, which shape image texture, are generated along image edges. By utilizing the special characteristic of the texture modification caused by the USM sharpening, a novel method called edge perpendicular binary coding is proposed in this letter to detect USM sharpening. Extensive experiments have been conducted to show the superiority of the proposed method over the existing methods.
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