Perception Based Representations for Computational Colour

  • Maria Vanrell
  • Naila Murray
  • Robert Benavente
  • Alejandro Párraga
  • Xavier Otazu
  • Ramon Baldrich
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6626)

Abstract

The perceived colour of a stimulus is dependent on multiple factors stemming out either from the context of the stimulus or idiosyncrasies of the observer. The complexity involved in combining these multiple effects is the main reason for the gap between classical calibrated colour spaces from colour science and colour representations used in computer vision, where colour is just one more visual cue immersed in a digital image where surfaces, shadows and illuminants interact seemingly out of control.

With the aim to advance a few steps towards bridging this gap we present some results on computational representations of colour for computer vision. They have been developed by introducing perceptual considerations derived from the interaction of the colour of a point with its context. We show some techniques to represent the colour of a point influenced by assimilation and contrast effects due to the image surround and we show some results on how colour saliency can be derived in real images. We outline a model for automatic assignment of colour names to image points directly trained on psychophysical data. We show how colour segments can be perceptually grouped in the image by imposing shading coherence in the colour space.

Keywords

colour perception psychophysical data induction saliency naming segmentation 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Maria Vanrell
    • 1
  • Naila Murray
    • 1
  • Robert Benavente
    • 1
  • Alejandro Párraga
    • 1
  • Xavier Otazu
    • 1
  • Ramon Baldrich
    • 1
  1. 1.Computer Vision CenterUniversitat Autònoma de BarcelonaBellaterraSpain

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