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An efficient algorithm for the enhancement of JPEG-coded images
- Source :
-
Computers & Graphics . Aug2003, Vol. 27 Issue 4, p529. 6p. - Publication Year :
- 2003
-
Abstract
- Despite its growing age, the JPEG is among the most popular choices as a standard compression scheme for continuous-tone still images. In this paper, a novel technique is proposed to alleviate the blocking artifacts that usually occur in JPEG coded images especially at low bit rates. The proposed algorithm consists of two stages: firstly, the AC coefficients are estimated based on their observed probability distribution and secondly, a postprocessing scheme is applied for blockiness removal, consisting of a region classification algorithm and a spatial adaptive filtering. Experimental results demonstrate the efficiency of the proposed method. [Copyright &y& Elsevier]
- Subjects :
- *JPEG (Image coding standard)
*IMAGE compression
*ALGORITHMS
Subjects
Details
- Language :
- English
- ISSN :
- 00978493
- Volume :
- 27
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Computers & Graphics
- Publication Type :
- Academic Journal
- Accession number :
- 10354842
- Full Text :
- https://doi.org/10.1016/S0097-8493(03)00088-8