Radeon Image Sharpening is a technology developed by AMD that enhances the clarity and detail of images in video games. It works by applying a sharpening filter to the rendered images, making textures and edges appear crisper without significantly increasing the performance load on the graphics card. This feature is particularly useful for gamers who want to improve visual quality without sacrificing frame rates. Radeon Image Sharpening can be adjusted to suit individual preferences, allowing users to find the right balance between sharpness and natural appearance in their gaming experience.