Fast computation of a contrast-invariant image representation

  title={Fast computation of a contrast-invariant image representation},
  author={Pascal Monasse and Fr{\'e}d{\'e}ric Guichard},
  journal={IEEE transactions on image processing : a publication of the IEEE Signal Processing Society},
  volume={9 5},
This paper sets out a new representation of an image which is contrast independent. The image is decomposed into a tree of "shapes" based on connected components of level sets, which provides a full and nonredundant representation of the image. A fast algorithm to compute the tree, the fast level lines transform (FLLT), is explained in detail. Some simple and direct applications of this representation are shown. 
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