1. Enhanced LIC Pencil Filter A project proposal by David Coyne

2. Authors’ earlier technique Line Integral Convolution produces pencil-like strokes Relies on segmentation (c), a challenging and computationally intensive problem

3. Authors’ earlier technique The original technique was slow because it required segmentation. it didn’t always distinguish areas well.

4. 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

5. Steps for enhanced LIC Divide image into intensity layers

6. Steps for enhanced LIC Apply LIC, using texture orientation for darkest level vector field

7. Steps for enhanced LIC Add edges from edge detection Subtract paper samples for more realism

8. Risks Don’t know how to do Line Integral Convolution Determining texture direction Where to get digital paper samples

9. 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