Colour Perception 2

Question 1

What are the 2 colour theories?

Answer 1

Trichromatic Theory and Opponent process theory

Question 2

trichromatic theory what are the primary colours?

Answer 2

Red, Blue, and green

Question 3

Opponent process theory what are the primary colours?

Answer 3

Red, blue, green, and yellow

Question 4

What is a monochromat?

Answer 4

No colour vision. Either a rod monochromat (no cones) or a cone monochromat (only 1 type of cone)

Question 5

What is a dichromat?

Answer 5

Missing one type of cone. (L,M,S)

Question 6

What is colour constancy?

Answer 6

The perception of an objects colour remains relatively constant, in spite of changing illumination

Question 7

Luminance=

Answer 7

Illuminance (illumination of an object) X Reflectance (percentage of light reflected by an object)

Question 8

The ratio Principle

Answer 8

Provides a degree of constancy in 2D scenes

Question 9

Mechanism of colour constancy

Answer 9

Chromatic adaption

Question 10

spectral composition of light entering the eye after being reflected from surface=

Answer 10

spectral composition of the illuminant X Reflectance of the surface