The Noise Reduction of Digital Image Based on Grey Relational Analysis

摘要

The paper presents an adaptive filter based on grey relational analysis of grey system theory. The adaptive filter is an optimizing process to obtain the value of weigh, which is decided by comparing the similarity between the grey levels of sample pixels in the filter window and the mean grey levels of pixels in the window based on the grey correlation degree. The experimental result shows that the method is effective for it can keep the details of images.