Introduction to the Computer Graphics

1. Introduction to the Computer Graphics Anton V. Kudinov, Assistant professor of Computer Engineering Department

2. Overview • Problem of graphical information representation • Raster and Vector graphics: definitions, properties, advantages and disadvantages • Application fields

3. Base types of the representation • Raster (bitmap) • Vector (object-oriented)

4. Raster graphics P i x e l - picture element

5. 1,2,8,3,128,255,255,... 4,3,13,55,67,2,35,44,... 23,2,44,255,0,5,255,... …………… …………… …………… Raster graphics

6. Parameters of raster images 1. Resolution — pixel density d p i - dots per inch 2. Color depth — amount of bits for representation of each pixel color information

7. Vector graphics

8. Advantages of vector graphics over bitmaps • vector graphics are scalable • vector graphics files are usually much smaller than bitmap files

9. Application fields of vector graphics Application fields of raster graphics • computer-aided design(CAD) • animation tools • desktop publishing systems (polygraphy) • rendering photo-realistic images