Detecting Digital Image Forgeries by Measuring Inconsistencies of Blocking Artifact

Author

Ye, Shuiming ; Sun, Qibin ; Chang, Ee-Chien

fYear

2007

fDate

2-5 July 2007

Firstpage

12

Lastpage

15

Abstract

Digital images can be forged easily with today\´s widely available image processing software. In this paper, we describe a passive approach to detect digital forgeries by checking inconsistencies of blocking artifact. Given a digital image, we find that the blocking artifacts introduced during JPEG compression could be used as a "natural authentication code". A blocking artifact measure is then proposed based on the estimated quantization table using the power spectrum of the DCT coefficient histogram. Experimental results also demonstrate the validity of the proposed approach.

Keywords

data compression; discrete cosine transforms; image coding; object detection; DCT coefficient histogram; JPEG compression; blocking artifact; digital image forgeries detection; natural authentication code; power spectrum; quantization table estimation; Authentication; Digital images; Discrete cosine transforms; Forgery; Histograms; Image coding; Image processing; Power measurement; Quantization; Transform coding;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia and Expo, 2007 IEEE International Conference on

Conference_Location

Beijing

Print_ISBN

1-4244-1016-9

Electronic_ISBN

1-4244-1017-7

Type

conf

DOI

10.1109/ICME.2007.4284574

Filename

4284574