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Enhanced LIC Pencil Filter. A project proposal by David Coyne. Authors’ earlier technique. Line Integral Convolution produces pencil-like strokes Relies on segmentation (c), a challenging and computationally intensive problem. Authors’ earlier technique.

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enhanced lic pencil filter

Enhanced LIC Pencil Filter

A project proposal by David Coyne

authors earlier technique
Authors’ earlier technique
  • Line Integral Convolution produces pencil-like strokes
  • Relies on segmentation (c), a challenging and computationally intensive problem
authors earlier technique1
Authors’ earlier technique
  • The original technique was slow because it required segmentation.
  • it didn’t always distinguish areas well.
concept of enhanced lic
Concept of enhanced LIC
  • Successive layers of strokes in different directions imitates actual technique.
  • Finding layers of intensity range does not require segmentation of image regions
steps for enhanced lic
Steps for enhanced LIC
  • Divide image into intensity layers
steps for enhanced lic1
Steps for enhanced LIC
  • Apply LIC, using texture orientation for darkest level vector field
steps for enhanced lic2
Steps for enhanced LIC
  • Add edges from edge detection
  • Subtract paper samples for more realism
risks
Risks
  • Don’t know how to do Line Integral Convolution
  • Determining texture direction
  • Where to get digital paper samples
weekly milestones
Weekly Milestones
  • Nov. 24: Make LIC function
  • Dec. 1: Represent vector fields in Matlab, Test LIC function on images and debug results
  • Dec. 8: Implement texture direction and edge detection
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