sentence: Computer screens are made of a raster of points.
sentences_before: With raster graphics, images are modeled as big collections of pixels. Usually they form an image shaped like a rectangle. Each pixel holds something, like color or transparency. Raster images are used very often.
sentences_after: Vector graphic images are rasterised that way. Images that are difficult to make as a vector, like photographs, are often made in the form of a raster image.
concept_name: computer screen
headings: Raster graphics
categories: Computer graphics