Abstract
While many parametric filters have successfully extracted accurate and coherent lines, their results are sensitive to parameters tuning, leading to either excessive or insufficient amount of lines. In this work, we present a sketch-based system to guide the line abstraction of arbitrary images using the user specified strokes. With the assistance of our system, the user simply has to provide a few intuitive strokes, including tracing roughly along the edges and scribbling on the regions of interest. The system then automatically extracts from a detailed line abstraction those lines that are long, coherent, and share similar structures in texture to conform the user’s intention. We have tested our system on a wide variety of images. The experimental results show that our system can generate concise line drawings and outperforms state-of-the-art techniques in terms of quality and efficiency.