Introduction to algorithms
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
NPAR '02 Proceedings of the 2nd international symposium on Non-photorealistic animation and rendering
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Fast hierarchical importance sampling with blue noise properties
ACM SIGGRAPH 2004 Papers
Proceedings of the 2005 ACM SIGGRAPH/Eurographics symposium on Computer animation
GI '05 Proceedings of Graphics Interface 2005
A spectral approach to NPR packing
Proceedings of the 4th international symposium on Non-photorealistic animation and rendering
Non-photorealistic rendering in context: an observational study
Proceedings of the 4th international symposium on Non-photorealistic animation and rendering
A spatial data structure for fast Poisson-disk sample generation
ACM SIGGRAPH 2006 Papers
Recursive Wang tiles for real-time blue noise
ACM SIGGRAPH 2006 Papers
ACM SIGGRAPH 2006 Papers
Proceedings of the 7th International Symposium on Non-Photorealistic Animation and Rendering
Example-based stippling using a scale-dependent grayscale process
NPAR '10 Proceedings of the 8th International Symposium on Non-Photorealistic Animation and Rendering
Automated hedcut illustration using isophotes
SG'10 Proceedings of the 10th international conference on Smart graphics
Extended papers from NPAR 2010: Scale-dependent and example-based grayscale stippling
Computers and Graphics
Structure-preserving stippling by priority-based error diffusion
Proceedings of Graphics Interface 2011
Artistic tessellations by growing curves
Proceedings of the ACM SIGGRAPH/Eurographics Symposium on Non-Photorealistic Animation and Rendering
Estimating cell count and distribution in labeled histological samples using incremental cell search
Journal of Biomedical Imaging
Feature-guided image stippling
EGSR'08 Proceedings of the Nineteenth Eurographics conference on Rendering
Structure and aesthetics in non-photorealistic images
Proceedings of Graphics Interface 2013
Generating pointillism paintings based on Seurat's color composition
EGSR '13 Proceedings of the Eurographics Symposium on Rendering
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We present a stipple placement method which provides extra emphasis to image features, especially edges. Our algorithm transforms an image into a regular graph, with edge weights given by the local gradient magnitude of the input image. Then, a variant of Disjkstra's algorithm is used to place stipples: new stipples are placed along the frontier, which tends to be aligned with image edges. The resulting stipple distribution approximates a blue noise distribution, but emphasizes edges from the input image. We also show how irregular mosaics can be organized and the mosaic tiles shaped using the same underlying mechanism.