Title: Watermark-based digital fake image detection

Authors: Wei Sun, Wei Lu

Addresses: School of Software, Guangdong Key Laboratory of Information Security Technology, Sun Yat-sen University, Guangzhou 510275, China. ' School of Information Science and Technology, Guangdong Key Laboratory of Information Security Technology, Sun Yat-sen University, Guangzhou 510275, China

Abstract: Nowadays, fake images are becoming popular. We are no longer able to guarantee the trueness of digital images, which has been considered as a valid recording of events. In this paper, a detection method is proposed to examine that whether an image is fake or real. In order to locate the altered parts, a watermark based pre-processing method is introduced. If the image is fake, the extracted watermark is different from the original one. The proposed method not only can detect whether an image is fake, but also can locate the fake area. Experimental results also show that the performance of the method is encouraging.

Keywords: image fakery; fake detection; digital watermarking; fake images; electronic security.

DOI: 10.1504/IJCAT.2010.034146

International Journal of Computer Applications in Technology, 2010 Vol.38 No.1/2/3, pp.113 - 117

Available online: 16 Jul 2010 *

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