Image Noise Removal by Median filter using MATLAB (with inbuilt and without inbuilt function)
Image Salt and pepper (Impulse) noise removal by Median filter using Matlab Introduction: Noise removal technique is a strategy that helps to remove or minimize noise from the image. Usually, noise occurs during the acquisition of the image. And externally, noise is also added to measure the efficiency of the algorithm. Various types of noise and noise filter methods are available. Here we going to discuss salt and pepper noise and median filter. What is salt and pepper noise? Definition: Sa lt and pepper noise images look like black and white pixels in the image at random. To obtain the salt and pepper noise image from the original image, black (0) and white (255) were added randomly to the original image. What is a median filter? Definition: The median is determined by first sorting all pixel values from the nearby area (window area) in ascending order and then exchanging the pixel being viewed with the center image pixel value. Figure 1. Median filter Click her