DocumentCode
2468035
Title
Denoising JPEG images by re-application of JPEG
Author
Nosratinia, Aria
Author_Institution
Dept. of Electr. & Comput. Eng., Rice Univ., Houston, TX, USA
fYear
1998
fDate
7-9 Dec 1998
Firstpage
611
Lastpage
615
Abstract
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
Keywords
data compression; discrete cosine transforms; image coding; image enhancement; noise; transform coding; JPEG image denoising; JPEG re-application; JPEG-encoded images; POCS; already-compressed image; average; coding artifacts reduction; nonlinear filtering; post-processing; redundant DCT expansion; redundant wavelets; shifted versions; visual quality enhancement; Discrete cosine transforms; Filter bank; Image coding; Information filtering; Information filters; Least squares methods; Noise generators; Noise reduction; Quantization; Transform coding;
fLanguage
English
Publisher
ieee
Conference_Titel
Multimedia Signal Processing, 1998 IEEE Second Workshop on
Conference_Location
Redondo Beach, CA
Print_ISBN
0-7803-4919-9
Type
conf
DOI
10.1109/MMSP.1998.739048
Filename
739048
Link To Document