Going deeper into copy-move forgery detection: Exploring image telltales via multi-scale analysis and voting processes

Author(s)

Silva, Ewerton ^[1] ; Carvalho, Tiago ^[1] ; Ferreira, Anselmo ^[1] ; Rocha, Anderson ^[1]

Affiliation

^[1] Univ Estadual Campinas, Inst Comp, RECOD Lab, BR-13083852 Campinas, SP - Brazil

• Document type: Journal article
• Source: JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION; v. 29, p. 16-32, MAY 2015.
• Web of Science Citations: 48

Abstract

This work presents a new approach toward copy-move forgery detection based on multi-scale analysis and voting processes of a digital image. Given a suspicious image, we extract interest points robust to scale and rotation finding possible correspondences among them. We cluster correspondent points into regions based on geometric constraints. Thereafter, we construct a multi-scale image representation and for each scale, we examine the generated groups using a descriptor strongly robust to rotation, scaling and partially robust to compression, which decreases the search space of duplicated regions and yields a detection map. The final decision is based on a voting process among all detection maps. We validate the method using various datasets comprising original and realistic image clonings. We compare the proposed method to 15 others from the literature and report promising results. (C) 2015 Elsevier Inc. All rights reserved. (AU)

• FAPESP's process: 10/05647-4 - Digital forensics: collection, organization, classification and analysis of digital evidences
• Grantee: Anderson de Rezende Rocha
• Support Opportunities: Research Grants - Young Investigators Grants