Introduction to the Computer Graphics Anton V. Kudinov, Assistant professor of Computer Engineering Department
Overview Problem of graphical information representation Raster and Vector graphics: definitions, properties, advantages and disadvantages Application fields
Base types of the representation Raster (bitmap) Vector (object-oriented)
Raster graphics P i x e l - picture element
1,2,8,3,128,255,255,... 4,3,13,55,67,2,35,44,... 23,2,44,255,0,5,255,... …………… Raster graphics
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
Vector graphics
Advantages of vector graphics over bitmaps vector graphics are scalable vector graphics files are usually much smaller than bitmap files
Application fields of vector graphics computer-aided design (CAD) animation tools desktop publishing systems (polygraphy) Application fields of raster graphics rendering photo-realistic images