A method of generating graphics that treats an image as a collection of small, independently controlled dots (pixels) arranged in rows and columns. Compare vector graphics.
Computer graphics that are stored in the computer memory by using a map to record data (such as color and intensity) for every pixel that makes up the image. When transformed (enlarged, rotated, stretched, and so on), raster graphics become ragged and suffer loss of picture resolution, unlike vector graphics. Raster graphics are typically used for painting applications, which allow the user to create artwork on a computer screen much as if they were painting on paper or canvas.