light, colour & photography

...a personal website by ric morte

Colour

the dimension of colour

you might also be interested in these articles: the dimension of light & dark | colour space models

world of colour

experience

colour vision

colour temperature

you might also be interested in this article: the dimension of colour

An article on colour space

It is a known fact that light changes colour as it gets brighter. In one sense only is this true: for black-body radiators. As a material is heated it starts to glow, at first cherry red, then orange, yellow, then "white" until finally the light appears blue (or at least bluish). This is an everyday phenomenon and accounts for the difference in the "whiteness" between ordinary tungsten lamps and the much hotter halogen-quartz lamps. It also accounts for the difference between the colour of stars: the redness of Betelgeuse, for example, compared to the blueness of Rigel, both in the constellation of Orion.

There is a separate section on colour temperature [here] as well as a discussion on the different illuminant standards and "white balance".

colour blindness

you might also be interested in this article: the dimension of colour

We first become aware of colour blindness when we meet others who cannot distinguish the colours we can or when others seem to be able to make distinctions tthat are invisible to us.. The cause is most definitely not linguistic; the colour blind person, when asked to match certain colours, will demonstrate an inability to do so.

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