Non-Photorealistic Computer Graphics Library

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Proceedings Stylization and Abstraction of Photographs

Author(s): Doug DeCarlo, Anthony Santella.
Proceedings: 29th annual conference on Computer graphics and interactive techniques (SIGGRAPH '02), pp. 769--776, San Antonio, Texas, ACM Press, 2002.
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Good information design depends on clarifying the meaningful structure in an image. We describe a computational approach to stylizing and abstracting photographs that explicitly responds to this design goal. Our system transforms images into a line-drawing style using bold edges and large regions of constant color. To do this, it represents images as a hierarchical structure of parts and boundaries computed using state-of-the-art computer vision. Our system identifies the meaningful elements of this structure using a model of human perception and a record of a user’s eye movements in looking at the photo; the system renders a new image using transformations that preserve and highlight these visual elements. Our method thus represents a new alternative for non-photorealistic rendering both in its visual style, in its approach to visual form, and in its techniques for interaction.

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