Introduction to Computer Graphics

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Introduction to Computer Graphics

Computer Graphics is an area of computer science and engineering which involves display, manipulation and storage of pictures and experimental data for proper visualization using a computer.

A picture is 10,000 worth words !

Graphics Image

Graphics Image

 

A survey on Computer Graphics

Suppose we want to draw a triangle ,What we have envisioned is called the object definition, which defines the triangle in an abstract space of our choosing. This space is continuous and is called Object Space.

Our action to draw maps the imaginary object into a triangle on paper, which constitutes a continuous display surface in another space called the image space.

Pixel

  • Pixel is the smallest element of an image.
  • Pixel means Picture Element.
  • It is also known as Pel.

 Frame Buffer

Before an image can be displayed on the screen it must be created by a computer program in a special part of computer’s memory called frame buffer.

Graphics System

Graphics System

Graphics System

 

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