Median Filter

A median filter is a technique used in image processing to reduce noise while preserving important details. Imagine you have a picture with some random dots or specks that spoil its quality. The median filter looks at each pixel in the image and replaces it with the median value of its neighboring pixels. The median is the middle number in a sorted list, which helps eliminate extreme values, like outliers or noise, while keeping the overall image sharp. This makes images clearer, especially in situations where noise may obscure important features.