A novel technique for color pencil sketching rendering based texture
ICIC'07 Proceedings of the intelligent computing 3rd international conference on Advanced intelligent computing theories and applications
A texture-based approach for hatching color photographs
ISVC'10 Proceedings of the 6th international conference on Advances in visual computing - Volume Part I
A Stylized Approach for Pencil Drawing from Photographs
Computer Graphics Forum
Technical Section: Pencil rendering on 3D meshes using convolution
Computers and Graphics
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This paper presents a new technique for automatically converting digital images into colored pencil drawings. In real colored pencil drawing, artists use different colors for different regions, and add pure colors directly onto paper to build the target color through optical blending. To support such effect, our technique extends the existing technique for reproducing color image with custom inks to automatically select the best color set for individual regions in a source image. Then layers of stroke image for each color are generated and superimposed with the Kubelka-Munk optical compositing model. We also allow users to specify regions and to customize the color set for a specified region interactively. The proposed technique can be easily extended to simulate other artistic media featured with optical color blending, such as pastel and wax crayons.