80 search results - page 2 / 16 » Subspaces of Quantization Artifacts for Image Transform Comp... |
ICIP
1998
IEEE
13 years 10 months ago
1998
IEEE
In this paper we use the information in the chrominance bands to reconstruct color block transformed compressed images. For the luminance and the two chrominance channels, we de n...
ICIP
2004
IEEE
14 years 8 months ago
2004
IEEE
A new method, using weighted combinations of shifted transforms, is developed for deringing and deblocking DCT compressed color images. The method shows substantial deringing impr...
ISCAS
1993
IEEE
13 years 10 months ago
1993
IEEE
An image compression system based on transform coding and zonal sampling is presented. It is based on the wellknown Chen-Smith coder, but with an improved technique for transform ...
ICASSP
2010
IEEE
13 years 6 months ago
2010
IEEE
The widespread availability of photo editing software has made it easy to create visually convincing digital image forgeries. To address this problem, there has been much recent w...
ICMCS
2007
IEEE
14 years 22 days 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...