Journal ArticleDOI
Exposing digital forgeries in color filter array interpolated images
Alin C. Popescu,Hany Farid +1 more
TLDR
This work quantifies the specific correlations introduced by CFA interpolation, and describes how these correlations can be automatically detected in any portion of an image and shows the efficacy of this approach in revealing traces of digital tampering in lossless and lossy compressed color images interpolated with several different CFA algorithms.Abstract:
With the advent of low-cost and high-resolution digital cameras, and sophisticated photo editing software, digital images can be easily manipulated and altered. Although good forgeries may leave no visual clues of having been tampered with, they may, nevertheless, alter the underlying statistics of an image. Most digital cameras, for example, employ a single sensor in conjunction with a color filter array (CFA), and then interpolate the missing color samples to obtain a three channel color image. This interpolation introduces specific correlations which are likely to be destroyed when tampering with an image. We quantify the specific correlations introduced by CFA interpolation, and describe how these correlations, or lack thereof, can be automatically detected in any portion of an image. We show the efficacy of this approach in revealing traces of digital tampering in lossless and lossy compressed color images interpolated with several different CFA algorithms.read more
Citations
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Journal ArticleDOI
Determining Image Origin and Integrity Using Sensor Noise
TL;DR: A unified framework for identifying the source digital camera from its images and for revealing digitally altered images using photo-response nonuniformity noise (PRNU), which is a unique stochastic fingerprint of imaging sensors is provided.
Journal ArticleDOI
Image forgery detection
TL;DR: The field of digital forensics has emerged to help restore some trust to digital images and the author reviews the state of the art in this new and exciting field.
Journal ArticleDOI
DeepFakes and Beyond: A Survey of Face Manipulation and Fake Detection
TL;DR: This survey provides a thorough review of techniques for manipulating face images including DeepFake methods, and methods to detect such manipulations, with special attention to the latest generation of DeepFakes.
Journal ArticleDOI
Exposing Digital Forgeries From JPEG Ghosts
TL;DR: A technique to detect whether the part of an image was initially compressed at a lower quality than the rest of the image is described, applicable to images of high and low quality as well as resolution.
Journal ArticleDOI
Region Duplication Detection Using Image Feature Matching
Xunyu Pan,Siwei Lyu +1 more
TL;DR: The proposed method starts by estimating the transform between matched scale invariant feature transform (SIFT) keypoints, which are insensitive to geometrical and illumination distortions, and then finds all pixels within the duplicated regions after discounting the estimated transforms.
References
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Journal ArticleDOI
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Book
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