Non-Photorealistic Computer Graphics Library

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Technical Report A Resolution-Independent Representation for Pen-and-Ink Illustrations

Author(s): Michael P. Salisbury, Corin Anderson, Dani Lischinski, David H. Salesin.
Technical Report: Department of Computer Science and Engineering, University of Washington, No. UW-CSE-96-01-02, 1996.
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This paper describes a compact resolution- and scale-independent representation for pen-and- ink illustrations. The proposed representation consists of a low-resolution grey-scale image, augmented by a set of discontinuity segments. We also present a new reconstruction algorithm that magnifies the low-resolution image while keeping the image sharp along the discontinuities. By storing pen-and-ink illustrations in this representation, we can produce high-fidelity illustrations at any scale and resolution by generating an image of the desired size and filling that image with pen-and-ink strokes.

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