Painterly Rendering

1
Painterly Rendering
Liwinowicz, P. Processing images and video for
an impressionist effect In Computer Graphics
(SIGGRAPH 97), 407-414 (1997)
March 14, 2003 Sung Yong SHIN Computer Science
Div.
2

• Transforming ordinary video segments into
• animation with a hand-drawn look automatically

• Temporal coherency
• Impressionist effect
• Off-the-shelf image processing and rendering
  techniques
• - image gradient
• - optical flow field
• - edge detection

3

• Strokes

positions orientations radius lengths colors order
4

• How to render
• stroke generation
• random perturbation
• clipping and rendering
• How to orient strokes
• How to achieve temporal coherency