Copy-move forgery detection for image forensics using the superpixel segmentation and the Helmert transformation

Abstract The increasing popularity of the internet suggests that digital multimedia has become easier to transmit and acquire more rapidly. This also means that this multimedia has become more susceptible to tampering through forgery. One type of forgery, known as copy-move duplication, is a specifi...

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Main Authors: Hui-Yu Huang, Ai-Jhen Ciou
Format: Article
Language:English
Published: SpringerOpen 2019-06-01
Series:EURASIP Journal on Image and Video Processing
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13640-019-0469-9
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author Hui-Yu Huang
Ai-Jhen Ciou
author_facet Hui-Yu Huang
Ai-Jhen Ciou
author_sort Hui-Yu Huang
collection DOAJ
description Abstract The increasing popularity of the internet suggests that digital multimedia has become easier to transmit and acquire more rapidly. This also means that this multimedia has become more susceptible to tampering through forgery. One type of forgery, known as copy-move duplication, is a specified type that usually involves image tampering. In this study, a keypoint-based image forensics approach based on a superpixel segmentation algorithm and Helmert transformation has been proposed. The purpose of this approach is to detect copy-move forgery images and to obtain forensic information. The procedure of the proposed approach consists of the following phases. First, we extract the keypoints and their descriptors by using a scale-invariant feature transform (SIFT) algorithm. Then, based on the descriptor, matching pairs will be obtained by calculating the similarity between keypoints. Next, we will group these matching pairs based on spatial distance and geometric constraints via Helmert transformation to obtain the coarse forgery regions. Then, we refine these coarse forgery regions and remove mistakes or isolated areas. Finally, the forgery regions can be localized more precisely. Our proposed approach is a more robust solution for scaling, rotation, and compression forgeries. The experimental results obtained from testing different datasets demonstrate that the proposed method can obtain impressive precision/recall rates in comparison to state-of-the-art methods.
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spelling doaj.art-e99e0485bad743989142519bbe3d34142022-12-21T22:45:00ZengSpringerOpenEURASIP Journal on Image and Video Processing1687-52812019-06-012019111610.1186/s13640-019-0469-9Copy-move forgery detection for image forensics using the superpixel segmentation and the Helmert transformationHui-Yu Huang0Ai-Jhen Ciou1Department of Computer Science and Information Engineering, National Formosa UniversityDepartment of Computer Science and Information Engineering, National Formosa UniversityAbstract The increasing popularity of the internet suggests that digital multimedia has become easier to transmit and acquire more rapidly. This also means that this multimedia has become more susceptible to tampering through forgery. One type of forgery, known as copy-move duplication, is a specified type that usually involves image tampering. In this study, a keypoint-based image forensics approach based on a superpixel segmentation algorithm and Helmert transformation has been proposed. The purpose of this approach is to detect copy-move forgery images and to obtain forensic information. The procedure of the proposed approach consists of the following phases. First, we extract the keypoints and their descriptors by using a scale-invariant feature transform (SIFT) algorithm. Then, based on the descriptor, matching pairs will be obtained by calculating the similarity between keypoints. Next, we will group these matching pairs based on spatial distance and geometric constraints via Helmert transformation to obtain the coarse forgery regions. Then, we refine these coarse forgery regions and remove mistakes or isolated areas. Finally, the forgery regions can be localized more precisely. Our proposed approach is a more robust solution for scaling, rotation, and compression forgeries. The experimental results obtained from testing different datasets demonstrate that the proposed method can obtain impressive precision/recall rates in comparison to state-of-the-art methods.http://link.springer.com/article/10.1186/s13640-019-0469-9Image forensicsCopy-move forgery detectionTampering detectionRegion duplicationSuperpixels
spellingShingle Hui-Yu Huang
Ai-Jhen Ciou
Copy-move forgery detection for image forensics using the superpixel segmentation and the Helmert transformation
EURASIP Journal on Image and Video Processing
Image forensics
Copy-move forgery detection
Tampering detection
Region duplication
Superpixels
title Copy-move forgery detection for image forensics using the superpixel segmentation and the Helmert transformation
title_full Copy-move forgery detection for image forensics using the superpixel segmentation and the Helmert transformation
title_fullStr Copy-move forgery detection for image forensics using the superpixel segmentation and the Helmert transformation
title_full_unstemmed Copy-move forgery detection for image forensics using the superpixel segmentation and the Helmert transformation
title_short Copy-move forgery detection for image forensics using the superpixel segmentation and the Helmert transformation
title_sort copy move forgery detection for image forensics using the superpixel segmentation and the helmert transformation
topic Image forensics
Copy-move forgery detection
Tampering detection
Region duplication
Superpixels
url http://link.springer.com/article/10.1186/s13640-019-0469-9
work_keys_str_mv AT huiyuhuang copymoveforgerydetectionforimageforensicsusingthesuperpixelsegmentationandthehelmerttransformation
AT aijhenciou copymoveforgerydetectionforimageforensicsusingthesuperpixelsegmentationandthehelmerttransformation