Active Colorization for Cartoon Line Drawings

Vectorization of Cartoon Drawings

Subdivision for Line Drawings

This paper presents approaches of incorporating subdivision techniques in the rendering process for computer-generated line drawings. A new method for accelerating silhouette detection is introduced. This “silhouette propagation” method gains its strength from being intertwined with the 3D subdivision process. Another technique reduces the number of 3D subdivision steps necessary for high-quali...

Adding User-Editing to a Catalogue of Cartoon Drawings

This paper describes an ongoing project to enable user-editing on an existing online database of about 120,000 British newspaper cartoons at the University of Kent. It describes the cartoon catalogue itself and then describes how the online search website has been extended to allow users to edit catalogue records in a way that should be both safe and economical. Finally, it discusses the next s...

Hidden Line Removal for 2D Cartoon Images

In this paper, we describe a hidden line removal scheme for 2D cartoon images. The depths are introduced to the polylines of the image. The surfaces of the image are classified and their depths updated according to the depths of polylines forming the surfaces. The hidden lines are identified by comparing the depths of the polylines with the depths of the surfaces. This algorithm has been applie...

Retrieval of Line Drawings

The usefulness of a collection of scanned documents must be measured by the facilities available for retrieval. Whereas most existing document management systems do not index line drawings (unless it is done manually), we propose a method to index line drawings automatically. Our method uses a weighted information retrieval system .