Computer reviewer

Graphics

illustrations, artworks, charts, diagrams, paintings, photographs, cartoons, etc.

Computer Graphics

pictures and images created and/or manipulated by a computer

William Fetter

Who was attributed to the term “computer graphics”?

Sketchpad

the first extensive interactive drawing program

Ivan Sutherland

Who developed sketchpad?

Bitmap Graphics

Also known as Raster images and are made up of pixels

Pixels

are represented by tiny dots of individual color that make up the image seen on the screen

Aliasing

the staircase effect that appears on diagonal lines

Image size

the number of pixels in an image; physical dimension

Resolution

the density of pixels or the number

of pixels contained in an inch

Vector Graphics

stores and displays digital images as a collection of graphical elements that can be individually manipulated

Graphic software

program or collection of programs that allows the user to create, edit, view, and organize computer graphics

Color wheel

Represents the primary, secondary and tertiary color

Color Model

The numerical method for describing and reproducing colors

Color modes

A system for identifying how many channels are used to represent a color and the depth of colors for each channel

Color mode

A specific method for displaying or printing colors

Bi-tonal, Greyscale, RGB, CMYK

What are the 4 common color modes

Bi-tonal color mode

Composed of black and white colors

Grey scale

Has one channel and displays 256 shades of grey

RGB

Display color as a result of light being transmitted

RGB color mode

3 color channels

CMYK

Also known as process color.

CMYK color mode

Has 4 channels

Bit depth

Refers to the number of bits assigned to each channel