Substrates Final 1-4

Densitometers use a wide-band filter to measure black density.

True

False

True

A spectrophotometer is most frequently used to make which type of profile?

a. Scanner

b. Digital camera

c. Printer

d. None of the above

c. Printer

Which of the following 'cannot' be used to make a monitor profile?

a. Densitometer

b. Colorimeter

c. Spectrophotometer

d. None of the above

a. Densitometer

Densitometers use red, green, and blue filters to measure the complementary colors cyan, magenta, and yellow.

True

False

True

Densitometers are useful in process control and can be used to establish standard press conditions.

True

False

True

Densitometers can compute visually related color metrics such as XYZ and LAB.

True

False

False

Colorimeters measure reflected or emitted light from red, green, and blue filters.

True

False

True

Colorimeters differ from densitometers by basing measurements on mathematical model of human color vision, the CIE Standard Observer.

True

False

True

Colorimeters can compute visually related color metrics such as XYZ and LAB.

True

False

True

A spectrophotometer measures the spectrum reflectance of a sample by illuminating the sample and measuring the % reflectance at each specified wavelength throughout the entire visible spectrum.

True

False

True

Which of the following instruments can provide the most accurate color measurement?

a. Densitometer

b. Colorimeter

c. Spectrophotometer

d. None of the above

c. Spectrophotometer

The terminology used to express the total color difference computed using a color different equation.

Delta 

The level of variation between light and dark areas in an image.

Contrast

Refers to a computed number representing the ability of a transmissive material to block light, or the ability of a reflective surface to absorb light.

Density

The range of different colors that can be interpreted by a color model or generated by a specific device.

Color Gamut 

To check, adjust, or systematically standardize the performance of a device.

Calibration

A sensitive, photoelectric instrument that measures the density of images or colors.

Densitometer

An optical measurement instrument that responds to color in a manner similar to the human eye – by filtering reflected light into its dominant regions of red, green, and blue.

Colorimeter 

An instrument that measures the characteristics of light reflected from or transmitted through an object, which is interpreted as spectral data.

Spectrophotometer