Non-Photorealistic Computer Graphics Library

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Found 10 item(s) that are new.

Proceedings Stylized Depiction of Images Based on Depth Perception
Jorge Lopez-Moreno, Jorge Jimenez, Sunil Hadap, Erik Reinhard, Ken Anjyo, Diego Gutierrez.
NPAR '10 Proceedings of the 8th International Symposium on Non-Photorealistic Animation and Rendering, 2010. [BibTeX]

Proceedings Real-Time Hatching
Emil Praun, Hugues Hoppe, Matthew Webb, Adam Finkelstein.
SIGGRAPH 2001, 2001. [BibTeX]

Proceedings A Few Good Samples: Shape & Tone Depiction for Hermite RBF Implicits
Emilio Vital Brazil, Ives Ma\^cedo, Mario Costa Sousa, Luiz Velho, Luiz Henrique de Figueiredo.
Proceedings of the 8th International Symposium on Non-Photorealistic Animation and Rendering (NPAR'10), pp. 7--15, ACM, 2010. [BibTeX]

Proceedings Viewing Progress in Non-photorealistic Rendering through Heinlein's Lens
Amy A. Gooch, Jeremy Long, Li Ji, Anthony Estey, Bruce Gooch.
Proceedings of the 8th International Symposium on Non-Photorealistic Animation and Rendering (NPAR'10), pp. 165--171, ACM, 2010. [BibTeX]

Proceedings Artistic Reality: Fast Brush Stroke Stylization for Augmented Reality
Jan Fischer, Dirk Bartz, Wolfgang Straßer.
ACM Symposium on Virtual Reality Software and Technology (VRST), pp. 155--158, Monterey, November, 2005. [BibTeX]

Proceedings Illustrative Display of Hidden Iso-Surface Structures
Jan Fischer, Dirk Bartz, Wolfgang Straßer.
Proceedings of IEEE Visualization (VIS'05), pp. 663--670, Minneapolis, October, 2005. [BibTeX]

Article Evaluation of Real-World and Computer-Generated Stylized Facial Expressions
Christian Wallraven, Heinrich H. Bülthoff, Douglas W. Cunningham, Jan Fischer, Dirk Bartz.
ACM Transactions on Applied Perception (TAP), Vol. 4, No. 3, pp. 1544--3558, November, 2007. [BibTeX]

Proceedings Skin-Aware Stylization of Video Portraits
Deirdre O'Regan, A.C. Kokaram.
Conference for Visual Media Production (CVMP '09), pp. 35--44, 2009. [BibTeX]

Proceedings Artistic Stereo Imaging by Edge Preserving Smoothing
Giuseppe Papari, Patrizio Campisi, Patrick Le Callet, Nicolai Petkov.
IEEE 13th Digital Signal Processing Workshop and 5th IEEE Signal Processing Education Workshop (DSP/SPE'09), pp. 639--642, 2009. [BibTeX]

Article Artistic Edge and Corner Enhancing Smoothing

Author(s): Giuseppe Papari, Nicolai Petkov, Patrizio Campisi.
Article: IEEE Transactions on Image Processing, Vol. 16, No. 10, pp. 2449--2462, October, 2007.
[BibTeX] [DOI] Find this paper on Google

Two important visual properties of paintings and painting-like images are the absence of texture details and the increased sharpness of edges as compared to photographic images. Painting-like artistic effects can be achieved from photographic images by filters that smooth out texture details, while preserving or enhancing edges and corners. However, not all edge preserving smoothers are suitable for this purpose. We present a simple nonlinear local operator that generalizes both the well known Kuwahara filter and the more general class of filters known in the literature as ``criterion and value filter structure''. This class of operators suffers from intrinsic theoretical limitations which give rise to a dramatic instability in presence of noise, especially on shadowed areas. Such limitations are discussed in the paper and overcome by the proposed operator. A large variety of experimental results shows that the output of the proposed operator is visually similar to a painting. Comparisons with existing techniques on a large set of natural images highlight conditions on which traditional edge preserving smoothers fail, whereas our approach produces good results. In particular, unlike many other well established approaches, the proposed operator is robust to degradations of the input image such as blurring and noise contamination.

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