RGB colours Flashcards

1
Q

Who was behind the study that discovered different cone cells?

A
  • Bowmaker, Dartnall and Mallon in 1983.
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2
Q

What is the function of the cornea?

A
  • Focuses light to produce a clear image.
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3
Q

What is the function of the iris?

A
  • Controls the amount of light entering the eye.
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4
Q

What is the function of the pupil?

A
  • The entrance for light into the eye.
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5
Q

What is the function of the retina?

A
  • Light sensitive cells.
  • Determine light or dark.
  • Assembles image.
  • Converts colour information into neural.
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6
Q

What is the function of the lens?

A
  • Adjusts to see near or far objects - changes the way it focuses light.
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7
Q

How can we ensure colour matching from display to printer?

A
  • Colour libraries such as Pantone.
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8
Q

What are the issues with the RGB colour system?

A
  1. Not visually uniform.
  2. Not easily transferrable.
  3. Can’t describe our perception using RGB.
  4. Image manipulation is difficult better to use HSB, HSV or HSL.
  5. Limited colour range - wider gamut required.
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9
Q

How would we increase the gamut of an RGB colour space and what effect would this have?

A
  • Increase the bit depth.

- Would space RGB colours out.

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10
Q

Why does RGB have multiple colour spaces?

A
  • Different RGB primaries.
  • Different Gamuts.
  • Different Devices.
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