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Erschienen in:
2017 | OriginalPaper | Buchkapitel
Light and Color
verfasst von : Peter Corke
Erschienen in: Robotics, Vision and Control
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In ancient times it was believed that the eye radiated a cone of visual flux which mixed with visible objects in the world to create a sensation in the observer – like the sense of touch, but at a distance – this is the extromission theory. Today we consider that light from an illuminant falls on the scene, some of which is reflected into the eye of the observer to create a perception about that scene. The light that reaches the eye, or the camera, is a function of the illumination impinging on the scene and the material property known as reflectivity.