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Proceedings Paper

A passive technique for detecting copy-move forgery with rotation based on polar complex exponential transform
Author(s): Mahmoud Emam; Qi Han; Liyang Yu; Ye Zhang; Xiamu Niu
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Paper Abstract

Copy-move is one of the most common methods for image manipulation. Several methods have been proposed to detect and locate the tampered regions, while many methods failed when the copied regions are rotated before being pasted. A rotational invariant detecting method using Polar Complex Exponential Transform (PCET) is proposed in this paper. Firstly, the original image is divided into overlapping circular blocks, and PCET is employed to each block to extract the rotation-invariant robust features. Secondly, the Approximate Nearest Neighbors (ANN) of each feature vector are collected by Locality Sensitive Hashing (LSH). Experimental results show that the proposed technique is robust to rotation.

Paper Details

Date Published: 6 July 2015
PDF: 6 pages
Proc. SPIE 9631, Seventh International Conference on Digital Image Processing (ICDIP 2015), 963104 (6 July 2015); doi: 10.1117/12.2196997
Show Author Affiliations
Mahmoud Emam, Harbin Institute of Technology (China)
Menoufia Univ. (Egypt)
Qi Han, Harbin Institute of Technology (China)
Liyang Yu, Harbin Institute of Technology (China)
Ye Zhang, Harbin Institute of Technology (China)
Xiamu Niu, Harbin Institute of Technology (China)

Published in SPIE Proceedings Vol. 9631:
Seventh International Conference on Digital Image Processing (ICDIP 2015)
Charles M. Falco; Xudong Jiang, Editor(s)

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