week 2 Flashcards
(10 cards)
1
Q
Accuracy?
A
How close a device can measure to the true mathematical value
2
Q
Repeatability?
A
How often a device can repeat the same results over and over again
3
Q
What does a densitometer do?
A
measures how much light is absorbed from a given process colour using RGB filters
4
Q
What does a colorimeter do?
A
measures light through RGB filters, reading in XYZ values
5
Q
What does a spectrophotometer do?
A
Measure reflected/ emitted light across the visible spectrum
6
Q
what are rod cells sensitive to?
A
Motion and light
7
Q
What are cone cells sensitive to?
A
Colour: long cones=red, medium cones=green, short= blue
8
Q
What is the retina?
A
collection of rods and cones in the back of the eye
9
Q
What are the components of the human visual system?
A
eye, optic nerve, brain
10
Q
How do you calculate delta E?
A
