Interactive Hatching
and Stippling by Example
by Pascal Barla,
Simon Breslav,
Joëlle
Thollot, and Lee
Markosian
Submitted to Graphics
Interface 2006
An illustration created with our system. The hatching and stippling
patterns on the upper left were inputs for our synthesis method. The
user then guided the synthesis process to fill a hand-drawn
illustration with similar-looking hatching and stippling patterns.
Abstract
We describe a system that lets a designer draw patterns of strokes in
the picture plane, then guide the synthesis of similar patterns over
new picture regions. Synthesis is based on an initial
user-assisted analysis phase in which the system recognizes distinct
types of strokes (hatching and stippling) and organizes them according
to perceptual grouping criteria. The synthesized strokes are produced
by combining properties (e.g., length, orientation, parallelism,
proximity) of the stroke groups extracted from the input
examples. We illustrate our technique with a drawing application that
supports guided synthesis of hatching and stippling patterns, and
scale-dependent reproduction of the resulting images.
Last modified December 8, 2005
