DocumentCode
1710373
Title
Image enhancement in the 2D DCT domain using a band-adaptive contrast modification
Author
Vale, Eduardo Esteves ; Alcaim, Abraham
Author_Institution
CETUC, PUC/Rio, Rio de Janeiro
fYear
2008
Firstpage
1516
Lastpage
1519
Abstract
A new algorithm for image enhancement in the two dimensional discrete cosine transform (2D DCT) domain is presented. The proposed scheme uses a band-adaptive contrast modification to enhance a large number of image details. In addition, it avoids noise amplification during the enhancement process. Experiments show the effectiveness of the proposed scheme as compared to other techniques reported in the literature. The new method was applied in the decompression domain of a DCT-based codec.
Keywords
codecs; discrete cosine transforms; image enhancement; 2D DCT domain; DCT-based codec; band-adaptive contrast modification; decompression domain; image enhancement; noise amplification; two dimensional discrete cosine transform domain; Codecs; Computational efficiency; Discrete cosine transforms; Frequency; Image coding; Image enhancement; Image quality; Image storage; Low-frequency noise; Pollution measurement; Image enhancement; contrast modification; discrete cosine transform;
fLanguage
English
Publisher
ieee
Conference_Titel
Communications, Control and Signal Processing, 2008. ISCCSP 2008. 3rd International Symposium on
Conference_Location
St Julians
Print_ISBN
978-1-4244-1687-5
Electronic_ISBN
978-1-4244-1688-2
Type
conf
DOI
10.1109/ISCCSP.2008.4537467
Filename
4537467
Link To Document