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» Anti-forensics of JPEG compression
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ICIP
2005
IEEE
14 years 9 months ago
JPEG 2000 scalar quantization using an optimally frequency localized modulated lapped transform
JPEG 2000 is a lossy integer-to-integer transform-based compression method that first quantizes the separable 2-D wavelet transform coefficients, then entropy codes them. The imag...
Peter C. Tay, Joseph P. Havlicek
ICMCS
2007
IEEE
125views Multimedia» more  ICMCS 2007»
14 years 2 months ago
JPEG Based Conditional Entropy Coding for Correlated Steganography
Correlated steganography considers the case in which the cover Work is chosen to be correlated with the covert message that is to be hidden. The advantage of this is that, at leas...
Lei Zheng, Ingemar J. Cox
IWDW
2005
Springer
14 years 1 months ago
Towards Multi-class Blind Steganalyzer for JPEG Images
In this paper, we use the previously proposed calibrated DCT features [9] to construct a Support Vector Machine classifier for JPEG images capable of recognizing which steganograp...
Tomás Pevný, Jessica J. Fridrich
DCC
2010
IEEE
13 years 11 months ago
On the Adaptive Coefficient Scanning of JPEG XR/HD Photo
We explore several local and global strategies for adaptive scan ordering of transform coefficients in JPEG XR/HD Photo. This codec applies a global adaptive scan-order heuristic ...
Vanessa Testoni, Max H. M. Costa, Darko Kirovski, ...
ICIP
1997
IEEE
14 years 9 months ago
Processing JPEG-Compressed Images
As JPEG has become an international standard for image compression, we present techniques that allow the processing of an image in the JPEG-compressed" domain. The goal is to...
Ricardo L. de Queiroz