Lecture 2 (3)

Question 1

What is the minimum difference between two wavelengths that can be discriminated called?

Answer 1

Just Noticeable Differences

This concept refers to the non-linear sensitivity to light change.

Question 2

What does CIE stand for in the context of color representation?

Answer 2

Commission Internationale de L’Eclairage

CIE is an alternative colour space that represents all physically realizable colours.

Question 3

The CIE colour model is often referred to as ________.

Answer 3

CIEXYZ

This model uses 3 ideal primaries written as X, Y, and Z.

Question 4

In the CIE model, colours are a weighted sum of the three primaries, expressed as ________.

Answer 4

XX + YY + ZZ

This formula represents how colours are blended in the CIE model.

Question 5

The ideal primaries X, Y, and Z in the CIE model are described as ________.

Answer 5

not physically realizable sources

These primaries are theoretical and not found in physical light sources.

Question 6

What type of coordinates do we commonly work with in the CIE model?

Answer 6

normalized chromaticity coordinates

These coordinates help in representing colours in a standardized way.