Raster

A raster is a digital image representation that uses a grid of pixels to represent an image. Each pixel in a raster image has a specific color and intensity value, and together they form the overall picture. Raster images are resolution-dependent, meaning that they will look different at different sizes, and if you make them larger, they can become pixelated and blurry.

Raster images are widely used in GIS, digital imaging, particularly in web design, graphic design, and digital photography. Examples of raster image file formats include JPEG, PNG, GIF, and BMP.