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Keywords = higher significant bit-plane

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17 pages, 3981 KB  
Article
HSB-SPAM: An Efficient Image Filtering Detection Technique
by Saurabh Agarwal and Ki-Hyun Jung
Appl. Sci. 2021, 11(9), 3749; https://doi.org/10.3390/app11093749 - 21 Apr 2021
Cited by 4 | Viewed by 2623
Abstract
Median filtering is being used extensively for image enhancement and anti-forensics. It is also being used to disguise the traces of image processing operations such as JPEG compression and image resampling when utilized in image de-noising and smoothing tool. In this paper, a [...] Read more.
Median filtering is being used extensively for image enhancement and anti-forensics. It is also being used to disguise the traces of image processing operations such as JPEG compression and image resampling when utilized in image de-noising and smoothing tool. In this paper, a robust image forensic technique namely HSB-SPAM is proposed to assist in median filtering detection. The proposed technique considers the higher significant bit-plane (HSB) of the image to highlight the statistical changes efficiently. Further, multiple difference arrays along with the first order pixel difference is used to separate the pixel difference, and Laplacian pixel difference is applied to extract a robust feature set. To compact the size of feature vectors, the operation of thresholding on the difference arrays is also utilized. As a result, the proposed detector is able to detect median, mean and Gaussian filtering operations with higher accuracy than the existing detectors. In the experimental results, the performance of the proposed detector is validated on the small size and post JPEG compressed images, where it is shown that the proposed method outperforms the state of art detectors in the most of the cases. Full article
(This article belongs to the Special Issue Development of IoE Applications for Multimedia Security)
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