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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 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 • The original technique was slow because it required segmentation. • it didn’t always distinguish areas well.
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 • Divide image into intensity layers
Steps for enhanced LIC • Apply LIC, using texture orientation for darkest level vector field
Steps for enhanced LIC • Add edges from edge detection • Subtract paper samples for more realism
Risks • Don’t know how to do Line Integral Convolution • Determining texture direction • Where to get digital paper samples
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