Raster graphics are a type of digital image that uses tiny rectangular pixels arranged in a grid formation to represent an image
. Each pixel contains one or more bits of information, depending on the degree of detail in the image. Raster graphics are well suited for displaying continuous-tone images such as photographs or shaded drawings, along with other detailed images
. Raster images are stored in image files with varying dissemination, production, generation, and acquisition formats
. Images produced from optical scanners and digital cameras are raster graphics, as are most images on the Internet
. Raster files work best when you need to store and display high-quality photographs
. However, each raster image is limited to its individual dimensions and number of pixels, which affects its size and resolution
. Raster files are generally larger than vector files and can contain millions of pixels and incredibly high levels of detail
