What is the purpose of feathering in image editing?

Feathering is a technique used in image editing to soften the edges of a selection, creating a smooth transition between the selected area and the background. This blurring and fading effect allows for a more natural integration of layers or elements within an image, which is particularly useful when compositing different images together. By applying feathering, editors can eliminate harsh borders or hard lines that can make the transition look artificial or jarring.

In contrast, the other options focus on enhancing color vibrancy, creating sharp edges, or improving overall contrast, which do not relate to the primary function of feathering in image manipulation. Feathering specifically aims to achieve a softer look at the edges of selections, making it a valuable technique for blending elements seamlessly in a design.