DIS Digital Workflow & Color Management 2 — Questions and Answers
Question 1: Which rendering intent is most appropriate when converting saturated out-of-gamut colors in product photography where hue accuracy is critical?
- Perceptual
- Relative Colorimetric (Correct answer)
- Absolute Colorimetric
- Saturation
Correct answer: Relative Colorimetric
Relative Colorimetric maps out-of-gamut colors to the nearest in-gamut equivalent while preserving in-gamut colors exactly, making it ideal for product work.
Question 2: In a color-managed workflow, what is the purpose of assigning a source profile vs. converting to a destination profile?
- They are interchangeable operations with the same result
- Assigning reinterprets the existing numbers; converting recalculates them for a new space (Correct answer)
- Assigning changes the pixel values; converting only tags the file
- Converting expands the gamut; assigning compresses it
Correct answer: Assigning reinterprets the existing numbers; converting recalculates them for a new space
Assigning a profile tells the system how to interpret existing RGB/CMYK numbers without changing them, while converting mathematically recalculates values to match the new color space.
Question 3: A 16-bit TIFF provides how many possible tonal levels per channel compared to an 8-bit JPEG?
- 2× more (512 vs 256)
- 4× more (1,024 vs 256)
- 256× more (65,536 vs 256) (Correct answer)
- 16× more (4,096 vs 256)
Correct answer: 256× more (65,536 vs 256)
A 16-bit channel has 65,536 tonal levels versus 256 in 8-bit, providing 256 times more gradation and reducing posterization risk during heavy editing.
Question 4: What does Black Point Compensation (BPC) do during a color space conversion?
- Forces all shadows to pure black
- Maps the darkest point of the source to the darkest point of the destination (Correct answer)
- Increases shadow contrast in the destination profile
- Removes embedded black channel information
Correct answer: Maps the darkest point of the source to the darkest point of the destination
BPC scales the source black point to match the destination black point, preventing muddy shadows when converting between profiles with different black point densities.
Question 5: Which color space has the smallest gamut and is therefore the most restrictive for print output?
- Adobe RGB (1998)
- ProPhoto RGB
- sRGB
- CMYK SWOP (Correct answer)
Correct answer: CMYK SWOP
CMYK SWOP has a smaller gamut than sRGB, especially in saturated greens and cyans, making it the most restrictive common output space.
Question 6: When soft-proofing for press output in Photoshop, enabling 'Simulate Paper Color' does what?
- Converts the file permanently to CMYK
- Simulates the paper white of the output profile, including its color cast (Correct answer)
- Adds a white border around the image
- Applies sharpening appropriate for press
Correct answer: Simulates the paper white of the output profile, including its color cast
Simulate Paper Color uses the output profile's paper white definition to show how the image will appear on the actual substrate, including any yellowish cast of coated or uncoated stock.
Question 7: A photographer shoots tethered into Capture One with a custom camera profile applied. This profile is best described as which type?
- Output profile
- Input (source) profile (Correct answer)
- Device link profile
- Abstract profile
Correct answer: Input (source) profile
A custom camera profile is an input (source) profile that defines how to interpret the camera's raw color data relative to a standard color space.
DIS Digital Workflow & Color Management 2
Which rendering intent is most appropriate when converting saturated out-of-gamut colors in product photography where hue accuracy is critical?