Results 221 to 230 of about 2,036 (254)
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IEEE Signal Processing Magazine, 2009
The article explains how photo-response nonuniformity (PRNU) of imaging sensors can be used for a variety of important digital forensic tasks, such as device identification, device linking, recovery of processing history, and detection of digital forgeries.
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The article explains how photo-response nonuniformity (PRNU) of imaging sensors can be used for a variety of important digital forensic tasks, such as device identification, device linking, recovery of processing history, and detection of digital forgeries.
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Scientific American, 2008
The article discusses the field of digital image forensics, which involves the detection of photographic fraud, which has become increasingly problematic given the widespread availability of digital image manipulation software. Simple tests such as looking for incompatible shadows are discussed, as are more advanced mathematical methods involving the ...
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The article discusses the field of digital image forensics, which involves the detection of photographic fraud, which has become increasingly problematic given the widespread availability of digital image manipulation software. Simple tests such as looking for incompatible shadows are discussed, as are more advanced mathematical methods involving the ...
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Digital image forensics for photographic copying
SPIE Proceedings, 2012Image display technology has greatly developed over the past few decades, which make it possible to recapture high-quality images from the display medium, such as a liquid crystal display(LCD) screen or a printed paper. The recaptured images are not regarded as a separate image class in the current research of digital image forensics, while the ...
Jing Yin, Yanmei Fang
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Image Forensics Technology for Digital Camera
2004Even though digital devices, especially digital cameras and camcoders, are getting popular, they are not counted in legal disputes as trustworthy devices. In this paper an image forensics technology is proposed to make digital image capturing devices have legal proof capabilities.
Jong-Weon Kim +2 more
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Digital Image Forensics Using Hexadecimal Image Analysis
2021Digital forensics is gaining increasing momentum today thanks to rapid developments in data editing technologies. We propose and implement a novel image forensics technique that incorporates hexadecimal image analysis to detect forgery in still images.
Gina Fossati +2 more
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Digital image forensics and anti-forensics
2014Nowadays, images are commonly found in Facebook, YouTube, WeChat and WWW all over the world due to the prevalence of digital cameras, smart phones, 3G/4G, cloud storage and social networks. Often images are an important source of evidence in law enforcement and investigative cases.
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Digital Forensic of JPEG Images
2014 Fifth International Conference on Signal and Image Processing, 2014Since JPEG is the de facto image format adopted in most of the digital cameras and image editing software, tampered image will be often a recompressed JPEG image. As JPEG works on 8 by 8 block cosine transform most of the tampering correlation inherited by tampered image may get destroyed, making forgery detection difficult thus it is common practice ...
Archana V. Mire +3 more
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Security of Forensic Techniques for Digital Images
2013Digitale Bilder werden überall im modernen Leben verwendet und ersetzen meist traditionelle Fotografien. Dabei können digitale Bilder oft ohne offensichtlich Beweise mit Hilfe von Bildverarbeitungwerkzeugen verändert werden. Deshalb ist die Überprüfung der Authentizität von Bildern unverzichtbar.
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Digital Image Forensics for Identifying Computer Generated and Digital Camera Images
2006 International Conference on Image Processing, 2006We describe a digital image forensics technique to distinguish images captured by a digital camera from computer generated images. Our approach is based on the fact that image acquisition in a digital camera is fundamentally different from the generative algorithms deployed by computer generated imagery.
Sintayehu Dehnie +2 more
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Digital image forgery — A threaten to digital forensics
2016 International Conference on Circuit, Power and Computing Technologies (ICCPCT), 2016Photography is an art. A digital image is a part of the real world formed after cycles of image generation process. From the initial days of photographic images itself, security and authenticity were major issues. With the era of digital images, the process of altering an image became so popular.
V Parameswaran Nampoothiri, N. Sugitha
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