Color-Decoupled Photo Response Non-Uniformity for Digital Image Forensics

Anti-Forensics of Photo Response Non-Uniformity of Digital Images

The digital image processing is to be used in Antiforensics of photo response non-uniformity of digital images. Fingerprints are one of those irregular twists of nature. The fingerprints are used for authentication and identification processes in forensic tasks such as detection of digital forgeries. Forensic tasks can to be performed in device identification problem, device linking problem, fi...

Source digital camcorder identification using sensor photo response non-uniformity

Photo-response non-uniformity (PRNU) of digital sensors was recently proposed [1] as a unique identification fingerprint for digital cameras. The PRNU extracted from a specific image can be used to link it to the digital camera that took the image. Because digital camcorders use the same imaging sensors, in this paper, we extend this technique for identification of digital camcorders from video...

A Study on the Photo Response Non-uniformity Noise Pattern Based Image Forensics in Real-world Applications

In this paper, we study Photo Response Non-Uniformity (PRNU) based image tampering detection methods and their applicability in real-world image tampering detection applications. Experiments using current PRNU based image forensic methods were conducted to evaluate the performance of existing methods in the realistic applications. The PRNU based forensic approach was tested on the images taken ...

Analysis of Sensor Photo Response Non-Uniformity in RAW Images

The focus of this paper is a review of a digital camera identification technique proposed by Lukas et al [1], and a modification of the denoising filter, allowing it to be used for raw sensor data. The approach of using raw sensor data allows analysis of the noise pattern separate from any artefacts introduced by on-board camera processing. We use this extension for investigating the reliabilit...

Digital Image Forensics