Anti-aliasing is a technique used in digital graphics to smooth out the edges of objects. When images are displayed on screens, diagonal or curved lines can appear jagged or pixelated due to the square shape of pixels. Anti-aliasing helps to reduce this effect by blending the colors of the edge pixels with the background, creating a smoother transition and making the image look more natural. This process is especially important in video games and computer graphics, where realistic visuals enhance the overall experience. By applying anti-aliasing, developers can improve the appearance of characters, landscapes, and other elements, making them more visually appealing to players and viewers alike.