ABSTRACT
This paper presents an edge-enhanced isotropic nonlinear filter to extract strokes from cartoon images. The algorithm starts by removing most non-stroke regions that have high brightness values using an adaptive threshold. According to the property of dark outline in cartoon images, A Laplacian of Gaussian filter is applied to enhance the isotropic responses of boundary pixels in the stroke. Compared to existing stroke extraction methods, our algorithm can extract strokes in its entirety, and faithfully preserve the details on the stroke boundaries, especially for noisy images. Experimental results show that the proposed algorithm can produce more robust and accurate extraction results on a variety style of cartoon images.
- Canny, J. 1986. A computational approach to edge detection. IEEE Trans. Pattern Anal. Mach. Intell. 8, 6, 679--698. Google ScholarDigital Library
- Cheng, M.-M. 2009. Curve structure extraction for cartoon images. In Proceedings of The 5th Joint Conference on Harmonious Human Machine Environment, 13--25.Google Scholar
- Comaniciu, D., and Meer, P. 2002. Mean shift: A robust approach toward feature space analysis. IEEE Trans. Pattern Anal. Mach. Intell. 24, 5, 603--619. Google ScholarDigital Library
- Eberly, D., Gardner, R., Morse, B., Pizer, S., and Scharlach, C. 1994. Ridges for image analysis. J. Math. Imaging Vis. 4, 4, 353--373. Google ScholarDigital Library
- Geman, D., and Jedynak, B. 1996. An active testing model for tracking roads in satellite images. IEEE Trans. Pattern Anal. Mach. Intell. 18, 1, 1--14. Google ScholarDigital Library
- Guru, D. S., Shekar, B. H., and Nagabhushan, P. 2004. A simple and robust line detection algorithm based on small eigenvalue analysis. Pattern Recogn. Lett. 25, 1, 1--13. Google ScholarDigital Library
- Hsu, S. C., and Lee, I. H. H. 1994. Drawing and animation using skeletal strokes. In SIGGRAPH '94: Proceedings of the 21st annual conference on Computer graphics and interactive techniques, 109--118. Google ScholarDigital Library
- Jacob, M., and Unser, M. 2004. Design of steerable filters for feature detection using canny-like criteria. IEEE Trans. Pattern Anal. Mach. Intell 26, 1007--1019. Google ScholarDigital Library
- Koller, T. M., Gerig, G., Szekely, G., and Dettwiler, D. 1995. Multiscale detection of curvilinear structures in 2-d and 3-d image data. In ICCV '95: Proceedings of the Fifth International Conference on Computer Vision, 864. Google ScholarDigital Library
- Li, S.-X., Chang, H.-X., and Zhu, C.-F. 2009. Fast curvilinear structure extraction and delineation using density estimation. Comput. Vis. Image Underst. 113, 6, 763--775. Google ScholarDigital Library
- Lindeberg, T. 1998. Edge detection and ridge detection with automatic scale selection. Int. J. Comput. Vision 30, 2, 117--156. Google ScholarDigital Library
- Liu, L., Zhang, D., and You, J. 2007. Detecting wide lines using isotropic nonlinear filtering. IEEE Trans. Image Process 16, 6, 1584--1595. Google ScholarDigital Library
- Loh, A. W. K., Robey, M. C., and West, G. A. W. 2001. Analysis of the interaction between edge and line finding techniques. Pattern Recognition 34, 6, 1127--1146.Google ScholarCross Ref
- Merlet, N., and Zerubia, J. 1996. New prospects in line detection by dynamic programming. IEEE Trans. Pattern Anal. Mach. Intell. 18, 4, 426--431. Google ScholarDigital Library
- Steger, C. 1998. An unbiased detector of curvilinear structures. IEEE Trans. Pattern Anal. Mach. Intell. 20, 2, 113--125. Google ScholarDigital Library
- Zhang, T. Y., and Suen, C. Y. 1984. A fast parallel algorithm for thinning digital patterns. Communications of the ACM 27, 3, 236--239. Google ScholarDigital Library
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