Removal of impulsive noise from highly corrupted color images

摘要

Nonlinear vector median filters (VMF) and their variants represent ones of the most popular approaches for color image processing. In this paper a novel effective method for detection and removal impulse noise in highly corrupted color images has been proposed. First, window operator based on an explicit use of spatial relations between color image elements to detect impulse noise is used. Then the spatially connected modification of VMF for removal of previously detected impulsive noise has been employed. The performance of the proposed detector and filter for detecting and suppression of impulsive noise in test images is compared to conventional vector median algorithms.