DocumentCode
3449582
Title
Image magnification by modifying DCT coefficients
Author
Lee, Jeong Ho ; Lee, Jong Min ; Park, Ki Tae ; Moon, Young Shik
Author_Institution
Dept. of Comput. Sci. & Eng., Hanyang Univ., Seoul, South Korea
fYear
2012
fDate
13-16 Jan. 2012
Firstpage
120
Lastpage
121
Abstract
In this paper, we propose the method for magnification of a single image by modifying DCT coefficients. The proposed method modifies DCT coefficients using a reference map that indicates variations of pixel values according to the image magnification. Experimental results show that the performance of our method has been improved by 7% over the conventional methods.
Keywords
discrete cosine transforms; image enhancement; image resolution; DCT coefficients modification; conventional method; image magnification; pixel values; reference map; Conferences; Discrete cosine transforms; Frequency domain analysis; Image edge detection; Image reconstruction; Image resolution; Interpolation;
fLanguage
English
Publisher
ieee
Conference_Titel
Consumer Electronics (ICCE), 2012 IEEE International Conference on
Conference_Location
Las Vegas, NV
ISSN
2158-3994
Print_ISBN
978-1-4577-0230-3
Type
conf
DOI
10.1109/ICCE.2012.6161769
Filename
6161769
Link To Document