50 search results - page 3 / 10 » DCT quantization noise in compressed images |
ICIP
2003
IEEE
14 years 6 months ago
2003
IEEE
Given a color image previously compressed using JPEG, we estimate the image's JPEG compression history components including the color transformation, subsampling, and the qua...
ICMCS
2007
IEEE
13 years 11 months ago
2007
IEEE
Digital images can be forged easily with today’s widely available image processing software. In this paper, we describe a passive approach to detect digital forgeries by checkin...
TCSV
2002
13 years 4 months ago
2002
Transform approximations are explored for speeding up the software compression of images and video. Approximations are used to replace the regular discrete cosine transform (DCT) w...
ICASSP
2011
IEEE
12 years 9 months ago
2011
IEEE
The statistical footprint left by JPEG compression can be a valuable source of information for the forensic analyst. Recently, it has been shown that a suitable anti-forensic meth...
ECCV
2006
Springer
14 years 7 months ago
2006
Springer
Abstract. The steady improvement in image/video editing techniques has enabled people to synthesize realistic images/videos conveniently. Some legal issues may occur when a doctore...