underscan

Underscan is a term used in the context of digital displays and video systems to describe the process of displaying an image that is smaller than the native resolution of the display. This technique is often used to improve the visual quality of the image by reducing the amount of pixelation and aliasing that can occur when displaying a high-resolution image on a lower-resolution screen. Underscan can be achieved through various methods, including scaling the image down to fit within the display's native resolution or using a combination of scaling and interpolation techniques to create a smoother image. This process is commonly used in gaming, video editing, and other applications where image quality is a critical factor. However, it is important to note that underscan can also result in a loss of detail and clarity, as the image is being displayed at a lower resolution than it was originally intended for. Therefore, it is often used as a last resort when other methods of improving image quality have been exhausted.