Topological histogram reduction towards colour segmentation

@InProceedings\{VBV2007,
  author       = "Eduard V\'azquez and Ramon Baldrich and Javier Vazquez-Corral and Maria Vanrell",
  title        = "Topological histogram reduction towards colour segmentation ",
  booktitle    = "Lecture Notes in Computer Science",
  series       = "Iberian Conference, Pattern Recognition and image Analysis (IBPRIA'07)",
  pages        = "55--62",
  month        = "Jun",
  year         = "2007",
  publisher    = "Springer",
  address      = "Girona (Spain)",
  url          = "http://cat.cvc.uab.es/Public/Publications/2007/VBV2007"
}