Localised contrast

A relatively new type of image adjustment that splits a photo up into different areas, depending on its properties, and applies an optimum contrast adjustment to each. It’s used for a variety of ‘dehaze’ and similar tools. It’s also used as a kind of super-coarse sharpening which doesn’t make the edges of objects crisper in the normal way, but works over a much wider radius to give images more visual ‘punch’ from normal viewing distances.