Geodesic
Expression of Lines Drawn by Chalks Based on Scanned Images
Journal for geometry and graphics, Tome 11 (2007) no. 1, pp. 105-11 Cet article a éte moissonné depuis la source Heldermann Verlag

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We propose a computer graphics algorithm to represent lines drawn by chalk. Chalk lines have very coarse texture. We use a scanned image of textures drawn by real chalk. When two chalk lines cross to each other, we adopt alpha blending technique for obscuring part of the existing texture by a new texture. We obtained realistic chalk lines by a simple algorithm. The drawing process is not real time in our current implementation, but further improvement of the efficiency can be expected.
Classification : 68U05
Mots-clés : Non-photorealistic rendering, chalk line, cubic Bezier curve, alpha blending 
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     author = {F. Okabe and K. Nakamaru and Y. Ohno },
     title = {Expression of {Lines} {Drawn} by {Chalks} {Based} on {Scanned} {Images}},
     journal = {Journal for geometry and graphics},
     pages = {105--11},
     year = {2007},
     volume = {11},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/JGG_2007_11_1_JGG_2007_11_1_a9/}
}
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F. Okabe; K. Nakamaru; Y. Ohno . Expression of Lines Drawn by Chalks Based on Scanned Images. Journal for geometry and graphics, Tome 11 (2007) no. 1, pp. 105-11. http://geodesic.mathdoc.fr/item/JGG_2007_11_1_JGG_2007_11_1_a9/