To read this content please select one of the options below:

An efficient model for copy-move image forgery detection

Kha-Tu Huynh (International University, Ho Chi Minh City, Vietnam and Vietnam National University, Ho Chi Minh City, Vietnam)
Tu-Nga Ly (International University, Ho Chi Minh City, Vietnam and Vietnam National University, Ho Chi Minh City, Vietnam)
Thuong Le-Tien (University of Technology, Ho Chi Minh City, Vietnam and Vietnam National University, Ho Chi Minh City, Vietnam)

International Journal of Web Information Systems

ISSN: 1744-0084

Article publication date: 4 August 2022

Issue publication date: 25 October 2022

136

Abstract

Purpose

This study aims to solve problems of detecting copy-move images. With input images, the problem aims to: Confirm the original or forgery of the images, evaluate the performance of the detection and compare the proposed method’s effectiveness to the related ones.

Design/methodology/approach

This paper proposes an algorithm to identify copy-move images by matching the characteristics of objects in the same group. The method is carried out through two stages of grouping the objects and comparing objects’ features. The classification and clustering can improve processing time by skipping groups of only one object, and feature comparison on objects in the same group improves accuracy of the detection. YOLO5, the latest version of you only look once (YOLO) developed by Ultralytics LLC, and K-means are applied to classify and group the objects in the first stage. Then, modified Zernike moments (MZMs) and correlation coefficients are used for the features extraction and matching in the second stage. The Open Images V6 data set is used to train the YOLO5 model. The combination of YOLO5 and MZM makes the effectiveness of the proposed method for copy-move image detection with an average accuracy of 94.26% for images of benchmark and MICC-F600 and 95.37% for natural images. The outstanding feature of the method is that it can balance both processing time and accuracy in detecting duplicate regions on the image.

Findings

The problem is then solved by doing the following steps: Build a method to detect objects and compare their features to find the similarity if they are copy-move objects; use YOLO5 for the object detection and group the same category objects; ignore the group having only one object and extract the features of the other groups by MZMs; detect copy-move regions using K-means clustering; and calculate and compare the detection accuracy of the proposed method and related methods.

Originality/value

The main contributions of this paper include: Reduce the processing time by using YOLO5 in objects detection and K-means in clustering; improve the accuracy by using MZM to extract features and correlation coefficients to matching them; and implement and prove the effectiveness of the proposed method for three copy-move data sets: benchmark, MICC-F600 and author-built images.

Keywords

Acknowledgements

This research is funded by Vietnam National University HoChiMinh City (VNU-HCM) under grant number C2022-28-08.

Citation

Huynh, K.-T., Ly, T.-N. and Le-Tien, T. (2022), "An efficient model for copy-move image forgery detection", International Journal of Web Information Systems, Vol. 18 No. 2/3, pp. 181-195. https://doi.org/10.1108/IJWIS-04-2022-0088

Publisher

:

Emerald Publishing Limited

Copyright © 2022, Emerald Publishing Limited

Related articles