COMP2 - Images

Question 1

Pixel

Answer 1

Smallest addressable element of an image.

Question 2

Black and White

Answer 2

1 bit is used to represent each colour (black = 1 and white = 0). 1 byte can store 8 pixels.

Question 3

16 Colour Bitmap

Answer 3

16 colours possible.

4 bits represent each pixel.

Question 4

256 Colour Bitmap

Answer 4

256 colours possible.
8 bits represent each colour.
1 byte stores data for 1 pixel.

Question 5

Resolution

Answer 5

VDU screen - number of pixels on each row and column.

Image - number of pixels/dots per inch.

Question 6

Drawing Object

Answer 6

What a vector graphic is made up of.

Question 7

Drawing List

Answer 7

Complete set of objects and their properties make up the drawing list.

Question 8

Drawing Object Data

Answer 8

Held as a set of properties about each object

Question 9

Changing Image

Answer 9

Vector graphics are re-calculated and re-drawn so has no pixilation.

Question 10

Colour Depth

Answer 10

The number of pixels used to represent the colour of a single pixel in a bitmapped image