World without colour and its photographs and optical images | Intellect Skip to content
1981
Volume 11, Issue 1-2
  • ISSN: 2040-3682
  • E-ISSN: 2040-3690

Abstract

Photographs and optical images, whatever their contents, are imprints of the electromagnetic waves in the (human) visible range of wavelengths, we refer to as light. Furthermore, they are designed to portray different parts of the visible light in terms of different colours, in analogy with the human eyes, however imperfectly. The world outside our eyes and cameras, however, is permeated by electromagnetic waves with much wider spectrum of wavelengths than those in the visible range. Importantly also, colour is a construct of our eye–brains: the Universe itself has no colour, independently of us. I ask how does the knowledge of these facts change the way we perceive the colour in optical images and photographs, whatever their relationship to the world in a representational sense may be? By employing three images, with very different origins and vistas – one a direct photograph, the other two synthetically constructed images using real cosmological observations – I demonstrate the extent to which colour in such images can hide the underlying phenomena of which they claim to visually speak, both due to its nature as a coarse-grained visual index, and by being restricted to the visible range. The aim is not to belittle the important role that our (restricted) vision together with our perception of colour have played in the evolution of our species, and still play in the way we relate to the world informationally, aesthetically and emotionally. But rather to show that recognizing the limitations of our vision and complementing it with the knowledge of the phenomena underlying optical images and photographs can allow us to perceive them anew and provide additional tools (both conceptual and visual) to imagine and envision such images outside the bounds of the visible range and colour.

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2020-06-01
2024-03-29
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  • Article Type: Article
Keyword(s): blue of sky; colour; cosmos; first light; photograph; vision
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