A Comparative Study for Localization of Forgery Regions in Images

As computer technologies and image processing software have advanced, it has become progressively easier to produce simple fake or forged images by altering digital images without leaving any discernible trace. There is a significant need to detect manipulated regions in images in crucial fields suc...

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Main Authors: Mustafa Ozden, Canberk Sahin
Format: Article
Language:English
Published: IEEE 2025-01-01
Series:IEEE Access
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Online Access:https://ieeexplore.ieee.org/document/11088100/
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author Mustafa Ozden
Canberk Sahin
author_facet Mustafa Ozden
Canberk Sahin
author_sort Mustafa Ozden
collection DOAJ
description As computer technologies and image processing software have advanced, it has become progressively easier to produce simple fake or forged images by altering digital images without leaving any discernible trace. There is a significant need to detect manipulated regions in images in crucial fields such as politics, law, and forensic medicine. In this study, we propose a method that combines the traditional techniques, such as Discrete Cosine Transform (DCT) and Discrete Wavelet Transform (DWT), with the advantages of deep learning methods to detect manipulated regions in forged images. The proposed method involves designing an architecture where DWT and DCT are used in parallel with DenseNet based Convolutional Neural Network (CNN). To evaluate the effectiveness of this method, we implemented three alternative approaches: one that uses only DCT and CNN, another that uses only DWT and CNN, and a third that employs only CNN without either transformation. In total, four different methods were tested on eight datasets, and their performance was compared using metrics such as accuracy, precision, recall, dice similarity coefficient, and F1 score. The results from these comparisons clearly indicate the effectiveness and high classification accuracy of the proposed method. By leveraging the combined strengths of traditional image processing techniques and advanced deep learning algorithms, the proposed method demonstrates superior capability in detecting manipulated regions in forged images, thus offering a robust solution for applications in forensic field.
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spelling doaj-art-d1795cc1602745f890e773cf668511eb2025-08-20T03:58:40ZengIEEEIEEE Access2169-35362025-01-011313070113071810.1109/ACCESS.2025.359157111088100A Comparative Study for Localization of Forgery Regions in ImagesMustafa Ozden0https://orcid.org/0000-0002-0362-4017Canberk Sahin1https://orcid.org/0000-0002-4145-4418Electrical and Electronics Engineering Department, Bursa Technical University, Bursa, TürkiyeErmaksan, Bursa, TürkiyeAs computer technologies and image processing software have advanced, it has become progressively easier to produce simple fake or forged images by altering digital images without leaving any discernible trace. There is a significant need to detect manipulated regions in images in crucial fields such as politics, law, and forensic medicine. In this study, we propose a method that combines the traditional techniques, such as Discrete Cosine Transform (DCT) and Discrete Wavelet Transform (DWT), with the advantages of deep learning methods to detect manipulated regions in forged images. The proposed method involves designing an architecture where DWT and DCT are used in parallel with DenseNet based Convolutional Neural Network (CNN). To evaluate the effectiveness of this method, we implemented three alternative approaches: one that uses only DCT and CNN, another that uses only DWT and CNN, and a third that employs only CNN without either transformation. In total, four different methods were tested on eight datasets, and their performance was compared using metrics such as accuracy, precision, recall, dice similarity coefficient, and F1 score. The results from these comparisons clearly indicate the effectiveness and high classification accuracy of the proposed method. By leveraging the combined strengths of traditional image processing techniques and advanced deep learning algorithms, the proposed method demonstrates superior capability in detecting manipulated regions in forged images, thus offering a robust solution for applications in forensic field.https://ieeexplore.ieee.org/document/11088100/Convolutional neural networks (CNN)discrete cosine transform (DCT)discrete wavelet transform (DWT)image forgery detection
spellingShingle Mustafa Ozden
Canberk Sahin
A Comparative Study for Localization of Forgery Regions in Images
IEEE Access
Convolutional neural networks (CNN)
discrete cosine transform (DCT)
discrete wavelet transform (DWT)
image forgery detection
title A Comparative Study for Localization of Forgery Regions in Images
title_full A Comparative Study for Localization of Forgery Regions in Images
title_fullStr A Comparative Study for Localization of Forgery Regions in Images
title_full_unstemmed A Comparative Study for Localization of Forgery Regions in Images
title_short A Comparative Study for Localization of Forgery Regions in Images
title_sort comparative study for localization of forgery regions in images
topic Convolutional neural networks (CNN)
discrete cosine transform (DCT)
discrete wavelet transform (DWT)
image forgery detection
url https://ieeexplore.ieee.org/document/11088100/
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