DocumentCode
1791300
Title
Color image restoration by quaternion diffusion based on a discrete version of the topological derivative
Author
Yafeng Li
Author_Institution
Dept. of Comput. Sci., Baoji Univ. of Arts & Sci., Baoji, China
fYear
2014
fDate
14-16 Oct. 2014
Firstpage
201
Lastpage
206
Abstract
A new method for color image denoising is presented. This work considers three color channels as a whole by using quaternion diffusion. We use concept of topological sensitivity analysis. The diffusion coefficients are computed by a proposed cost function of the Topological Derivative. Finally, the effectiveness of this method for color image restoration is verified by several numerical experiments. This method is also suitable for gray image denoising by complex diffusion.
Keywords
image colour analysis; image denoising; image restoration; color channels; color image denoising; color image restoration; complex diffusion; cost function; diffusion coefficients; numerical experiments; quaternion diffusion; topological derivative; topological sensitivity analysis; Color; Equations; Filtering; Image color analysis; Mathematical model; Noise reduction; Quaternions; Image filtering; Topological Derivative; color image denoising; nonlinear diffusion; quaternion diffusion;
fLanguage
English
Publisher
ieee
Conference_Titel
Image and Signal Processing (CISP), 2014 7th International Congress on
Conference_Location
Dalian
Type
conf
DOI
10.1109/CISP.2014.7003777
Filename
7003777
Link To Document