Median Filtering

Median filtering is a technique used to improve the quality of images by reducing noise or small disturbances. Imagine looking at a photo and, for each pixel, considering its neighboring pixels. The median filter replaces the original pixel value with the middle value when all neighboring pixel values are arranged from smallest to largest. This process smooths out irregularities while preserving important edges and details, making the image clearer. It’s especially effective for removing salt-and-pepper noise, where random bright or dark spots appear, without blurring the overall image.