12 search results - page 1 / 3 » A New Deblocking Algorithm Based on Adjusted Contourlet Tran... |
ICMCS
2006
IEEE
13 years 10 months ago
2006
IEEE
A new postprocessing method based on adjusted contourlet transform is introduced in this paper for suppressing blocking artifacts (BA) in block-based discrete cosine transform (BD...
ICTAI
2005
IEEE
13 years 10 months ago
2005
IEEE
One of the major drawbacks in block-based discrete cosine transform (BDCT) is the blocking artifacts at low bit rates. In this paper, an adaptive deblocking algorithm based on Mar...
ICIP
2007
IEEE
13 years 11 months ago
2007
IEEE
The geometric features of images, such as edges, are difficult to represent. When a redundant transform is used for their extraction, the compression challenge is even more dif...
ICIP
2004
IEEE
14 years 6 months ago
2004
IEEE
In this paper, we first propose a new family of geometrical image transforms that decompose images both radially and angularly. Our construction comprises two stages of filter ban...
TMI
1998
13 years 4 months ago
1998
Abstract— The adaptive contrast enhancement (ACE) algorithm, which uses contrast gains (CG’s) to adjust the highfrequency components of images, is a well-known technique for me...