In this paper, we present a new dichromatic-based method for estimating illuminant chromaticity using a single image. In the proposed method, specular pixels are roughly extracted from an input image and projected into the three-dimensional dichromatic line space according to their image chromaticities and dichromatic slopes. Reliable dichromatic lines are then obtained by detecting local maxima in the dichromatic line space. Illuminant chromaticity is finally estimated by finding the intersections of the resulting dichromatic lines. The proposed method has some advantages. The proposed method can deal with highly textured images since it does not require precise color segmentation. In addition, the proposed method does not suffer from nearly parallel dichromatic lines and it can estimate artificial illuminant chromaticity.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Dichromatic-based color constancy using dichromatic slope and dichromatic line space


    Contributors:


    Publication date :

    2005-01-01


    Size :

    1026437 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Dichromatic-Based Color Constancy using Dichromatic Slope and Dichromatic Line Space

    Yoon, K.-J. / Choiy, Y. J. / Kweon, I.-S. | British Library Conference Proceedings | 2005


    Dual bases in dichromatic color space

    Knoblauch, K. / International Research Group on Colour Vision Deficiencies | British Library Conference Proceedings | 1995


    Solving for Colour Constancy using a Constrained Dichromatic Reflection Model

    Finlayson, G. D. / Schaefer, G. | British Library Online Contents | 2001


    Convex and Non-Convex Illuminant Constraints for Dichromatic Colour Constancy

    Finlayson, G. D. / Schaefer, G. / IEEE | British Library Conference Proceedings | 2001