Color questions 2

Question 1

In the RGB color model, what type of color mixing is used?

Answer 1

Additive mixing

Question 2

Which component of HSV color space corresponds to the perceived color type (e.g., red, green, blue)?

Answer 2

Hue

Question 3

Which color model is primarily used in analog NTSC television broadcasting?

Answer 3

YIQ

Question 4

Which part of human eye is responsible for color perception?

Answer 4

Cones

Question 5

In CMY printing, what color results when C=M=Y=0?

Answer 5

White

Question 6

What is the main reason for introducing a separate black (K) component in CMYK color model?

Answer 6

To reduce ink usage and improve black stability

Question 7

What is the neutral point (E) in the CIE chromaticity diagram?

Answer 7

x=y=1/3

Question 8

Which of the following is a perceptually more uniform color space compared to CIE XYZ?

Answer 8

CIE Lab*

Question 9

Which standard RGB specification is used in JPEG, PNG, and HTML?

Answer 9

sRGB

Question 10

In YUV color space, Y component represents:

Answer 10

Luminance

Question 11

Which factors complicate color perception?
A) Spectral composition of light
B) Different spectral albedos
C) Printer type
D) Color constancy

Answer 11

Spectral composition of light; Different spectral albedos; Color constancy

Question 12

Which properties are true about RGB color space?
A) It is device-dependent
B) It uses additive mixing
C) It is perceptually uniform
D) It is hard to perceive color differences based on distance in RGB space

Answer 12

It is device-dependent; It uses additive mixing; It is hard to perceive color differences based on distance in RGB space

Question 13

Which of the following are chromatic components in video color spaces like YUV and YCbCr?
A) U
B) V
C) Y
D) Cb and Cr

Answer 13

U; V; Cb and Cr

Question 14

Which transformations between color spaces are linear?
A) RGB to XYZ
B) RGB to HSV
C) RGB to YUV
D) XYZ to CIE x,y

Answer 14

RGB to XYZ; RGB to YUV

Question 15

Important features of HSV and HLS color spaces include:
A) Hue representing color type
B) Separation of luminance and color information
C) Use of additive mixing
D) Cylindrical or double-pyramid geometric representation

Answer 15

Hue representing color type; Separation of luminance and color information; Cylindrical or double-pyramid geometric representation

Question 16

Advantages of Under Color Removal (UCR) in CMYK printing are:
A) Reduces ink usage
B) Sharper black details
C) Increases color vibrancy
D) Reduces smudging

Answer 16

Reduces ink usage; Sharper black details; Reduces smudging

Question 17

In sRGB standard:
A) R, G, B color primaries are precisely defined
B) Gamma correction is applied
C) It is used mainly in print applications
D) The white point is precisely defined

Answer 17

R, G, B color primaries are precisely defined; Gamma correction is applied; The white point is precisely defined

Question 18

In the CIE XYZ model:
A) X, Y, Z are real primary colors
B) Y corresponds to luminance
C) It is linear with human perception
D) It is device-independent

Answer 18

Y corresponds to luminance; It is device-independent

Question 19

Which color spaces are considered device-independent?
A) sRGB
B) CIE XYZ
C) CIE Lab*
D) HSV

Answer 19

CIE XYZ; CIE Lab*

Question 20

When converting from RGB to grayscale (luminance), we:
A) Weight red and green more than blue
B) Only keep the red channel
C) Drop hue and saturation information
D) Use a linear combination of R, G, B

Answer 20

Weight red and green more than blue; Drop hue and saturation information; Use a linear combination of R, G, B