Colour invariance at a pixel

Graham D. Finlayson; Steven D. Hordley; John A. Marchant; Christine M. Onyango

Colour invariance at a pixel

Graham D. Finlayson, Steven D. Hordley, John A. Marchant, Christine M. Onyango

Research output: Contribution to conference › Paper

Abstract

This paper addresses the question of what can be said about the colours in images that is independent of illumination. We make two main assumptions: Firstly, the illumination can be characterised as Planckian (a realistic assumption for most real scenes). Secondly, the camera behaves as if it were equipped with narrow band sensors (true for a large number of cameras). The resulting physics-based method results in a transformation of the original colour image to a grey-scale one which does not vary with illumination. We give results showing invariance under a range of illumination conditions.

Original language	English
Publication status	Published - Sep 2000
Event	11th British Machine Vision Conference - University of Bristol, Bristol, United Kingdom Duration: 11 Sep 2000 → 14 Sep 2000

Conference

Conference	11th British Machine Vision Conference
Country/Territory	United Kingdom
City	Bristol
Period	11/09/00 → 14/09/00

Cite this

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title = "Colour invariance at a pixel",

abstract = "This paper addresses the question of what can be said about the colours in images that is independent of illumination. We make two main assumptions: Firstly, the illumination can be characterised as Planckian (a realistic assumption for most real scenes). Secondly, the camera behaves as if it were equipped with narrow band sensors (true for a large number of cameras). The resulting physics-based method results in a transformation of the original colour image to a grey-scale one which does not vary with illumination. We give results showing invariance under a range of illumination conditions.",

author = "Finlayson, {Graham D.} and Hordley, {Steven D.} and Marchant, {John A.} and Onyango, {Christine M.}",

year = "2000",

month = sep,

language = "English",

note = "11th British Machine Vision Conference ; Conference date: 11-09-2000 Through 14-09-2000",

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TY - CONF

T1 - Colour invariance at a pixel

AU - Finlayson, Graham D.

AU - Hordley, Steven D.

AU - Marchant, John A.

AU - Onyango, Christine M.

PY - 2000/9

Y1 - 2000/9

N2 - This paper addresses the question of what can be said about the colours in images that is independent of illumination. We make two main assumptions: Firstly, the illumination can be characterised as Planckian (a realistic assumption for most real scenes). Secondly, the camera behaves as if it were equipped with narrow band sensors (true for a large number of cameras). The resulting physics-based method results in a transformation of the original colour image to a grey-scale one which does not vary with illumination. We give results showing invariance under a range of illumination conditions.

AB - This paper addresses the question of what can be said about the colours in images that is independent of illumination. We make two main assumptions: Firstly, the illumination can be characterised as Planckian (a realistic assumption for most real scenes). Secondly, the camera behaves as if it were equipped with narrow band sensors (true for a large number of cameras). The resulting physics-based method results in a transformation of the original colour image to a grey-scale one which does not vary with illumination. We give results showing invariance under a range of illumination conditions.

M3 - Paper

T2 - 11th British Machine Vision Conference

Y2 - 11 September 2000 through 14 September 2000

ER -