Articles with "median filtering" as a keyword



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Robust median filtering detection based on the difference of frequency residuals

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Published in 2018 at "Multimedia Tools and Applications"

DOI: 10.1007/s11042-018-6831-6

Abstract: Recently, the detection of median filtering (MF), which is a popular nonlinear denoising manipulation, has attracted extensive attention from researchers. Several detectors with satisfying performance have been developed, while most of them need to train… read more here.

Keywords: detection; frequency residuals; frequency; median filtering ... See more keywords

AMFNet: An Adversarial Network for Median Filtering Detection

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Published in 2018 at "IEEE Access"

DOI: 10.1109/access.2018.2867370

Abstract: Median filtering is one of the most common operations for image smoothing and retouching, and it is often used as a post-processing by forgers to alleviate the traces of image tampering. Hence, if the traces… read more here.

Keywords: filtering detection; detection; network median; adversarial network ... See more keywords
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Median Filtering Forensics Using Multiple Models in Residual Domain

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Published in 2019 at "IEEE Access"

DOI: 10.1109/access.2019.2897761

Abstract: Median filtering, due to highly non-linear and content-preserving, has widely used in the multimedia security fields, such as anti-forensics, steganography, and steganalysis. In the past decade, many excellent algorithms have been proposed, and have solved… read more here.

Keywords: forensics using; median filtering; filtering forensics; image ... See more keywords
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Deep Residual Learning Using Data Augmentation for Median Filtering Forensics of Digital Images

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Published in 2019 at "IEEE Access"

DOI: 10.1109/access.2019.2923000

Abstract: This paper addresses the median filtering forensics for a lossy compressed image with low resolution, which is essential for the identification of fake images and fake videos. A deep residual model with training data augmentation… read more here.

Keywords: deep residual; median filtering; filtering forensics; image ... See more keywords
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Median Filtering Forensics in Compressed Video

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Published in 2019 at "IEEE Signal Processing Letters"

DOI: 10.1109/lsp.2018.2889921

Abstract: Median filtering has received extensive attention from forensics analyzers, as a common content-preserving, smoothing, and denoising manipulation. We propose a detection scheme for median filtering of video sequences in compressed domain based on the singular… read more here.

Keywords: video; forensics compressed; median filtering; filtering forensics ... See more keywords
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Erratic noise suppression using iterative structure‐oriented space‐varying median filtering with sparsity constraint

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Published in 2020 at "Geophysical Prospecting"

DOI: 10.1111/1365-2478.13032

Abstract: ABSTRACT Erratic noise often has high amplitudes and a non‐Gaussian distribution. Least‐squares–based approaches therefore are not optimal. This can be handled better with non–least‐squares approaches, for example based on Huber norm which is computationally expensive.… read more here.

Keywords: erratic noise; least squares; median filtering; noise suppression ... See more keywords