Random Valued Impulse Noise Removal in Colour Images using Adaptive Threshold and Colour Correction

To remove random valued impulse noise from colour images, an efficient impulse detection and filtering scheme is presented. The locally adaptive threshold for impulse detection is derived from the pixels of the filtering window. The restoration of the noisy pixel is done on the basis of brightness and chromaticity information obtained from the neighbouring pixels in the filtering window. Experimental results demonstrate that the proposed scheme yields much superior performance in comparison with other colour image filtering methods.