Enhancement of JPEG-Compressed images by re-application of JPEG

被引：61
|
作者：
Nosratinia, A [1 ]
机构：
[1] Univ Texas Dallas, Dept Elect Engn, Richardson, TX 75083 USA
来源：
JOURNAL OF VLSI SIGNAL PROCESSING SYSTEMS FOR SIGNAL IMAGE AND VIDEO TECHNOLOGY | 2001年 / 27卷 / 1-2期
关键词：
JPEG; image compression; enhancement; postprocessing;
D O I：
10.1023/A:1008167430544
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A novel method is proposed for post-processing of JPEG-encoded images, in order to reduce coding artifacts and enhance visual quality. Our method simply re-applies JPEG to the shifted versions of the already-compressed image, and forms an average. This approach, despite its simplicity, offers better performance than other known methods, including those based on nonlinear filtering, POCS, and redundant wavelets.
引用
收藏
页码：69 / 79
页数：11
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