Raster Graphics: This, also called bitmap graphics, is a type of digital image that uses tiny rectangular pixels, or picture elements, arranged in a grid formation to represent an image.
Raster graphics has origins in television technology, with images constructed much like the pictures on a television screen. A raster graphic is made up of a collection of tiny, uniformly sized pixels, which are arranged in a two-dimensional grid made up of columns and rows. A pixel (or picture element) is the smallest item of information in an image.
Vector Graphics: These are computer graphics images that are defined in terms of points on a Cartesian plane, which are connected by lines and curves to form polygons and other shapes. In vector graphics, mathematical formulae are used to draw different types of shapes, lines, objects and so on. Common vector graphics software are:
There are several Vector graphics file formats, but the ones most commonly used for logo design are:
EPS (Encapsulated PostScript): Adobe’s EPS format is the most widely used Vector graphic format. It is the standard interchange format for the print industry and is a well-supported export format from Vector graphics software.
AI (Adobe Illustrator Artwork): Adobe Illustrator’s native format is AI which is a modified version of the EPS format. The AI format is fairly common but is less universal than the EPS format.
SVG (Scalable Vector Graphic): SVG is the W3C Vector graphic standard. SVG is gaining in popularity as modern browsers increase their support of the format. SVG is becoming increasingly important as the various screen resolutions that websites need to support continues to broaden.
