A new colour space for skin tone detection

  • Authors:
  • Abbas Cheddad;Joan Condell;Kevin Curran;Paul Mc Kevitt

  • Affiliations:
  • School of Computing and Intelligent Systems, Faculty of Computing and Engineering, University of Ulster at Magee, Northern Ireland, United Kingdom;School of Computing and Intelligent Systems, Faculty of Computing and Engineering, University of Ulster at Magee, Northern Ireland, United Kingdom;School of Computing and Intelligent Systems, Faculty of Computing and Engineering, University of Ulster at Magee, Northern Ireland, United Kingdom;School of Computing and Intelligent Systems, Faculty of Computing and Engineering, University of Ulster at Magee, Northern Ireland, United Kingdom

  • Venue:
  • ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
  • Year:
  • 2009

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Abstract

The majority of existing methods have one thing in common which is the de-correlation of luminance from the considered colour channels. It is believed that the luminance is underestimated here since it is seen as the least contributing colour component to skin colour detection. This work questions this claim by showing that luminance can be useful in separating skin and non-skin clusters. To this end, this work uses a new colour space which contains error signals derived from differentiating the grayscale map and the non-encoded-red grayscale version. The advantages of this approach are the reduction of space dimensionality from 3D to 1D space and the construction of a rapid classifier necessary for real time applications. This method is meant to assist digital image steganography to orient the embedding process since skin information is deemed to be psycho-visually redundant.