DocumentCode
2278592
Title
A new contrast measure based image enhancement algorithm in the DCT domain
Author
Sun, Qingling ; Tang, Jinshan
Author_Institution
Dept. of Comput. Sci., Virginia Univ., Charlottesville, VA, USA
Volume
3
fYear
2003
fDate
5-8 Oct. 2003
Firstpage
2055
Abstract
In this paper a new algorithm is presented for image enhancement in the discrete cosine transform (DCT) domain. The algorithm is based on a novel contrast measure that is defined for each DCT coefficient. This algorithm can be applied to the enhancement of images compressed with JPEG and it is especially useful when it is applied to enhance the direction contrast of the images. Experimental results show the effectiveness of the proposed algorithm.
Keywords
discrete cosine transforms; image coding; image enhancement; DCT; JPEG; contrast measure; discrete cosine transform; image compression; image enhancement; Discrete Fourier transforms; Discrete cosine transforms; Discrete wavelet transforms; Electronic mail; Fourier transforms; Frequency domain analysis; Image coding; Image enhancement; Performance evaluation; Transform coding;
fLanguage
English
Publisher
ieee
Conference_Titel
Systems, Man and Cybernetics, 2003. IEEE International Conference on
ISSN
1062-922X
Print_ISBN
0-7803-7952-7
Type
conf
DOI
10.1109/ICSMC.2003.1244186
Filename
1244186
Link To Document