CCE CCE Color Measurement & Instrumentation

Question 1

What instrument measures the spectral reflectance of a surface across the visible spectrum wavelength by wavelength?

Accepted Answer

Spectrophotometer

Answer

A spectrophotometer measures spectral reflectance or transmittance across the visible spectrum, providing complete color data for accurate analysis.

Question 2

Which color measurement instrument is most commonly used to measure ink density on offset press sheets?

Accepted Answer

Densitometer

Answer

A densitometer measures the optical density of ink on a substrate, making it the standard tool for press quality control.

Question 3

The CIE L*a*b* color space is device-independent because it describes color based on what?

Accepted Answer

Human visual perception

Answer

CIE L*a*b* is based on the CIE standard observer and describes color as perceived by human vision, independent of any output device.

Question 4

What does Delta E (ΔE) measure in color management?

Accepted Answer

The perceptual difference between two colors

Answer

Delta E is a numerical measure of the perceptual difference between two colors in a color space such as CIE L*a*b*.

Question 5

Which measurement geometry is preferred for measuring color on glossy substrates to exclude specular reflection?

Accepted Answer

d/8° with specular excluded (SCE)

Answer

The d/8° geometry with the specular component excluded (SCE) eliminates the gloss component, giving a reading closer to how the eye sees the actual color.

(CCE) Certified Color Expert Practice Test

(CCE) Certified Color Expert Practice Test

CCE CCE Color Measurement & Instrumentation