Title :
An improved edge-adaptive image scaling algorithm
Author :
Jiang, Wen ; Xu, Haifeng ; Chen, Gengsheng ; Zhao, Wenqing ; Xu, Wei
Author_Institution :
State Key Lab. of ASIC & Syst., Fudan Univ., Shanghai, China
Abstract :
Image scaling is an important part of image processing. In order to protect edge characteristics of images, this paper proposes an improved edge-adaptive image scaling algorithm, in which the image is mainly divided into four kinds of image blocks with simple directional edge detector, and interpolation is then adaptively carried out along edge direction. Our experiment shows that the proposed algorithm can produce high-quality images with well-preserved edge and low computational complexity.
Keywords :
computational complexity; edge detection; image processing; interpolation; computational complexity; directional edge detector; edge direction; edge-adaptive image scaling; image processing; interpolation; Computational complexity; Detectors; Hardware; Image analysis; Image edge detection; Image processing; Interpolation; Pixel; Protection; Visual effects; Image scaling; computational complexity; edge detecting; prewitt operator;
Conference_Titel :
ASIC, 2009. ASICON '09. IEEE 8th International Conference on
Conference_Location :
Changsha, Hunan
Print_ISBN :
978-1-4244-3868-6
Electronic_ISBN :
978-1-4244-3870-9
DOI :
10.1109/ASICON.2009.5351551
