Edge preserving smoothing

Edge preserving smoothing is a computer technique used to remove small imperfections, or noise, from an image but still keeping the important parts of the image - like the edges of an object - intact. It works by finding the areas in an image that are "smooth" - meaning they are not too detailed - and smoothing them out, keeping the important details in the image such as the edges. This technique can make an image look better without changing or distorting any of the important parts.