Title: IMPROVED BILATERAL FILTERING SCHEME FOR NOISE REMOVAL IN COLOR IMAGES
Year of Publication: | Jun - 2012 |
Page Numbers: | 118-130 |
Authors: | Krystyna Malik, Bogdan Smolka |
Conference Name: | The International Conference on Informatics and Applications (ICIA2012)
- Malaysia |
Abstract:
In this paper a new approach to the problem of noise removal in color images is presented. The proposed ltering design is a modication of the bilateral denos- ing scheme, which takes into account the similarity between color pixels and their spatial distance. How- ever, instead of direct calculation of the dissimilarity measure, the cost of a connection through a digital path joining the central pixel of the ltering window with the remaining pixels is determined. The lter output, like in the standard bilateral lter, is calcu- lated as a weighted average of the pixels surrounding the center of the ltering window, and the weights are functions of the minimal connection costs. Ex- perimental results prove that the introduced design yields signicantly better results than the bilateral l- ter in the case of color images contaminated by strong mixed Gaussian and impulsive noise.