Substrates FInal 1-3

What ∆E means?

a. Color separation

b. Color difference

c. Chroma difference

d. None of the above

b.Color difference

A delta E of 0 means that two colors are the same.

True

False

True

A delta E of 2 means that…

a. Two colors are the same

b. Just noticeable difference between two colors

c. Significant visual difference between two colors

d. None of the above

b. Just noticeable difference between two colors

A delta E of 8 means that…

a. Two colors are the same

b. Just noticeable difference between two colors

c. Significant visual difference between two colors

d. None of the above

c. Significant visual difference between two colors

What ∆c means?

a. Lightness difference

b. Color difference

c. Chroma difference

d. None of the above

c. Chroma difference

What ∆L means?

a. Lightness difference

b. Color difference

c. Chroma difference

d. None of the above

a. Lightness difference

What is the Delta E₂₀₀₀ between samples A (50, 20, 10) and B (48, 18, 12)?

a. 3.46

b. 2.88

c. 2.99

d. 3.02

c. 2.99

What is the Delta E_CMC between samples A (10, -32, 35) and B (12, -34, 38)?

a. 4.17

b. 2.32

c. 4.12

d. 1.7

a. 4.17

Between sample A (10, -32, 35) and sample B (12, -34, 38), most color difference comes from lightness or chroma?

a. Lightness

b. Chroma

b. Chroma

Between sample A (50, 20, 10) and sample B (47, 18, 12), most color difference comes from lightness or chroma?

a. Lightness

b. Chroma

a. Lightness

For sample A (80, 55, -40) and sample B (80, 45, -40), which color was the most saturated?

a. Sample A

b. Sample B

a. Sample A

Delta E_ab is widely used in the graphic arts to characterize and specify color difference.

True

False

True

Delta E_CMC is widely used in the printing industry as a way of specifying color tolerance on press and from proof to press.

True

False

True