The Open Electrical & Electronic Engineering Journal

2014, 8 : 460-466
Published online 2014 December 31. DOI: 10.2174/1874129001408010460
Publisher ID: TOEEJ-8-460

Preserving Median Filtering Algorithm in Chip Images

Ding Ming
Xuzhou Institute of Technology, Xuzhou, Jiangsu, China.

ABSTRACT

The types and characteristics of noise in chip images were analyzed in this paper. A new kind of details preserving adaptive median filtering algorithm with directional sub-window was introduced in which the shape and size of filtering window can be adjusted according to the noise level and the sensitivity can be set by parameter. The filter can effectively get rid of most of the impulse noise and speckles from the chip image, and improve the accuracy of processing and analyzing image.

Keywords:

Chip images, noise, filtering algorithm.