Specifications

Publication year: 2012

Pages: 179-188

Language: English

ISSN: 19759339

E-ISSN: 22339310

Document type: Journal article (JA)

Publisher: Advanced Institute of Convergence Information Technology, Myoungbo Bldg

3F,, Bumin-dong 1-ga, Seo-gu, Busan, 602-816, Korea, Republic of

Abstract: Region duplication is a simple and common form of image tampering used to hide

or clone special objects in a single image scene. In this paper, we describe a novel detection

method for region duplication forgery that automatically detects and localizes tampered regions

in digital images using discrete cosine transform(DCT) and singular value decomposition(SVD).

DCT is applied to each block to represent its features resisting typical geometric manipulations.

SVD is used for improving the ability on resisting noise and dimensionality reduction.

Comparisons with the existing methods by experimental works indicate that the proposed

algorithm is more robust against some common postprocessing operations or attacks such as

typical geometrical transformations, lossy JPEG compression, additive Gaussian white noise and

Gaussian blur filtering. These operations and distortions are currently techniques used to conceal

traces of region duplication forgery in digital images.

Number of references: 18

Main heading: Singular value decomposition

Controlled terms: Discrete cosine transforms - Image compression - Image

processing

Uncontrolled terms: Additive Gaussian white noise - Detection methods - Digital

image - Dimensionality reduction - Gaussian blur - Geometric manipulation -

Geometrical transformation - Image forensics - Image tampering - JPEG compression

- Passive detection - Region duplication forgery - Single images - Special objects -

Techniques used

Classification code: 741 Light, Optics and Optical Devices - 921 Mathematics - 921.3

Mathematical Transformations

DOI: 10.4156/jdcta.vol6.issue23.21

Database: Compendex

Accession number: 20130215877106

Title: Controlled deposition, electrical and electrochemical properties of electroless

nickel layers on microarc oxidized magnesium substrates

Authors: Li, Junming1 ; Zhang, Qianwen1 ; Cai, Hui2 ; Wang, Aijuan1 ; Zhang, Jumei2 ; Hua,

Xiaohu2/李均明;;蔡辉;王爱娟;张菊梅;

Author affiliation:

1 School of Materials Science and Engineering, Xi'An University of Technology, Xi'an 710048,

China

2 College of Materials Science and Engineering, Xi'An University of Science and Technology,

Xi'an 710054, China