An efficient weak sharpening detection method for image forensics

Document Type

Article

Publication Date

1-1-2018

Abstract

In recent years, image sharpening detection has become one of the main topics in the field of image forensics. It is, however, still a challenge to detect the images sharpened with weak sharpening strength. To address this challenge, we propose an efficient method for image sharpening detection. In the proposed method, a ternary coding strategy with adaptive threshold is introduced to reveal the overshoot artifacts caused by weak sharpening. Extensive experiments are conducted to illustrate the superiority of the proposed method. The experimental results show that the proposed method can achieve a considerable improvement in sharpening detection, especially for slightly sharpened images.

Identifier

85034774842 (Scopus)

Publication Title

Journal of Visual Communication and Image Representation

External Full Text Location

https://doi.org/10.1016/j.jvcir.2017.11.009

e-ISSN

10959076

ISSN

10473203

First Page

93

Last Page

99

Volume

50

Grant

JCYJ20150630114942260

Fund Ref

National Natural Science Foundation of China

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