Adaptive Marginal Median Filter for Colour Images

Autor: Almanzor Sapena, Valentín Gregori, Samuel Morillas
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: Sensors, Vol 11, Iss 3, Pp 3205-3213 (2011)
Druh dokumentu: article
ISSN: 1424-8220
DOI: 10.3390/s110303205
Popis: This paper describes a new filter for impulse noise reduction in colour images which is aimed at improving the noise reduction capability of the classical vector median filter. The filter is inspired by the application of a vector marginal median filtering process over a selected group of pixels in each filtering window. This selection, which is based on the vector median, along with the application of the marginal median operation constitutes an adaptive process that leads to a more robust filter design. Also, the proposed method is able to process colour images without introducing colour artifacts. Experimental results show that the images filtered with the proposed method contain less noisy pixels than those obtained through the vector median filter.
Databáze: Directory of Open Access Journals