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Lighting and Metamerism

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Daylight. Lighting and Metamerism. Viewing Conditions. D50 - Colour rendering index. Daylight. Lighting and Metamerism. The Human Eye. Lighting and Metamerism ... – PowerPoint PPT presentation

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Title: Lighting and Metamerism


1
Lighting and Metamerism
Alan Dresch TypeMaker Ltd
2
Can you trust your eyes?
  • There are many factors that can affect your
    perception of colour

3
Which is the darker grey?
4
Which is the darker grey?
5
Which is the darker grey?
6
Which is the darker grey?
7
x
Concentrate on the X
8
x
9
x
Concentrate on the X
10
x
11
Lighting and Metamerism
  • Controlled Lighting D50/D60
  • The RHEM strip
  • Metamerism
  • the name given to the phenomenon where two colour
    samples appear to match under one light source,
    and not to match under another.

12
Lighting and Metamerism
  • Viewing Conditions

5000K Fluorescent tube
Daylight
13
Lighting and Metamerism
  • Viewing Conditions

D50 - Colour rendering index
Daylight
14
Lighting and Metamerism
  • The Human Eye

15
Lighting and Metamerism
  • Metamerism
  • RHEM strip Spectral Data
  • Human eye response
  • D50 illuminant


16
Lighting and Metamerism
  • Controlled Lighting D50/D60
  • The RHEM strip
  • Metamerism
  • the name given to the phenomenon where two colour
    samples appear to match under one light source,
    and not to match under another.

17
Lighting and Metamerism
Alan Dresch TypeMaker Ltd
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