Evolving Color Constancy for an Artificial Retina

  • Authors:
  • Marc Ebner

  • Affiliations:
  • -

  • Venue:
  • EuroGP '01 Proceedings of the 4th European Conference on Genetic Programming
  • Year:
  • 2001

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Abstract

Objects retain their color in spite of changes in the wavelength and energy composition of the light they reflect. This phenomenon is called color constancy and plays an important role in computer vision research. We have used genetic programming to automatically search the space of programs to solve the problem of color constancy for an artificial retina. This retina consists of a two dimensional array of elements each capable of exchanging information with its adjacent neighbors. The task of the program is to compute the intensities of the light illuminating the scene. These intensities are then used to calculate the reflectances of the object. Randomly generated color Mondrians were used as fitness cases. The evolved program was tested on artificial Mondrians and natural images.