Contour stencils for edge-adaptive image interpolation

@inproceedings{Getreuer2009ContourSF,
  title={Contour stencils for edge-adaptive image interpolation},
  author={Pascal Getreuer},
  booktitle={Electronic Imaging},
  year={2009}
}
  • Pascal Getreuer
  • Published in Electronic Imaging 18 January 2009
  • Computer Science
We first develop a simple method for detecting the local orientation of image contours and then use this detection to design an edge-adaptive image interpolation strategy. The detection is based on total variation: small total variation along a candidate curve implies that the image is approximately constant along that curve, which suggests it is a good approximation to the contours. The proposed strategy is to measure the total variation over a "contour stencil," a set of parallel curves… 
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