Local Scale Control for Edge Detection and Blur Estimation
IEEE Transactions on Pattern Analysis and Machine Intelligence
LCIS: a boundary hierarchy for detail-preserving contrast reduction
Proceedings of the 26th annual conference on Computer graphics and interactive techniques
Lumo: illumination for cel animation
NPAR '02 Proceedings of the 2nd international symposium on Non-photorealistic animation and rendering
Space Scale Localization, Blur, and Contour-Based Image Coding
CVPR '96 Proceedings of the 1996 Conference on Computer Vision and Pattern Recognition (CVPR '96)
Wang Tiles for image and texture generation
ACM SIGGRAPH 2003 Papers
ACM SIGGRAPH 2003 Papers
ACM SIGGRAPH 2004 Papers
Structure-preserving manipulation of photographs
Proceedings of the 5th international symposium on Non-photorealistic animation and rendering
Image vectorization using optimized gradient meshes
ACM SIGGRAPH 2007 papers
Diffusion curves: a vector representation for smooth-shaded images
ACM SIGGRAPH 2008 papers
Real-time gradient-domain painting
ACM SIGGRAPH 2008 papers
Interactive procedural street modeling
ACM SIGGRAPH 2008 papers
Coordinates for instant image cloning
ACM SIGGRAPH 2009 papers
A visibility algorithm for converting 3D meshes into editable 2D vector graphics
ACM SIGGRAPH 2009 papers
Automatic and topology-preserving gradient mesh generation for image vectorization
ACM SIGGRAPH 2009 papers
A GPU Laplacian solver for diffusion curves and Poisson image editing
ACM SIGGRAPH Asia 2009 papers
Rendering surface details with diffusion curves
ACM SIGGRAPH Asia 2009 papers
Ardeco: automatic region detection and conversion
EGSR'06 Proceedings of the 17th Eurographics conference on Rendering Techniques
Freeform vector graphics with controlled thin-plate splines
Proceedings of the 2011 SIGGRAPH Asia Conference
Diffusion curve textures for resolution independent texture mapping
ACM Transactions on Graphics (TOG) - SIGGRAPH 2012 Conference Proceedings
A vectorial solver for free-form vector gradients
ACM Transactions on Graphics (TOG) - Proceedings of ACM SIGGRAPH Asia 2012
A ray tracing approach to diffusion curves
EGSR'11 Proceedings of the Twenty-second Eurographics conference on Rendering
Depicting stylized materials with vector shade trees
ACM Transactions on Graphics (TOG) - SIGGRAPH 2013 Conference Proceedings
Diffusion curves: a vector representation for smooth-shaded images
Communications of the ACM
Biharmonic diffusion curve images from boundary elements
ACM Transactions on Graphics (TOG)
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The formulation of Diffusion Curves [Orzan et al. 2008] allows for the flexible creation of vector graphics images from a set of curves and colors: a diffusion process fills out the parts of the image that are away from curves. However, this model has limitations in certain situations and does not always seem to agree with how an artist wants to use the software. First, the diffusion itself cannot be controlled, only the colors. Further, the fact that color needs to be defined everywhere along the curve can lead to tedious and nonintuitive interactions. In this paper, we present a number of adaptations to diffusion curves that constrain how color is spread across the image. Specifically, we argue for the utility of controlling the speed and direction of the color diffusion, and the ability to have barriers that can be defined without the need to specify a particular color along these curves. We also describe how this can be implemented by solving a linear system, and demonstrate the effectiveness of our solution on a number of examples.