Chromatic and achromatic information preserved in natural scenes under illuminant changes

D. H. Foster, K. Amano, S. M. C. Nascimento

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    The aim of this study was to determine how much information about surface colour is preserved under changes in daylight illumination. Information was quantified in the sense of Shannon and was estimated separately for chromatic and achromatic attributes of surfaces in natural scenes. Despite the large variation of luminance within natural scenes and the usually restricted gamut of colours, the information from chromatic attributes was only a little less than that from achromatic attributes. As well as providing a basis for object discrimination in natural scenes, chromatic attributes provide an important contribution towards object identification under changes in illuminant.
    Original languageEnglish
    Title of host publicationProceedings of 10th Congress of the International Colour Association
    PublisherInternational Colour Association
    Pages69-72
    Number of pages4
    Publication statusPublished - 2005
    EventAIC Colour 05 - 10th Congress of the International Colour Association - Granada, Spain
    Duration: 1 Jan 1824 → …

    Conference

    ConferenceAIC Colour 05 - 10th Congress of the International Colour Association
    CityGranada, Spain
    Period1/01/24 → …

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