Modeling Scratchiness Effect of Oriental Writing Brush

[IC 5] Atsushi Takeda, Jungpil Shin, Won-Du Chang, "Modeling Scratchiness Effect of Oriental Writing Brush", IEEE International Conference on Computer and Information Technology, pp.121, Seoul, Republic of Korea, Sep. 2006. [publisher's site]

Abstract: Oriental ink writing consists of simple strokes intended to convey an artist's “deep feelings” that makes it to be regarded as a painting. Scratchiness in Japanese Kasure is one of the techniques which can express writer's emotion remarkably in calligraphy. Kasure is a brush splitting phenomenon which occurs when the brush is moving fast on the dried paper with a little amount of ink left. A novel method focused on the change of the energy is proposed in this paper. The ink in the brush permeates into a paper according to the brush speed and the volume that the brush touches paper. As the ink permeates into the paper, the energies of the brush and paper are changed. Besides energy transmission function, the droplets model is described in this paper to implement Kasure. The droplet represents the capillary bunches, which generate the splitting effect of brush. The entire stroke area is assumed as the trail the droplets have swept. The hull of separated droplets elegantly expresses the Kasure. We introduce the line form scratchiness segment as a basic unit for filling the between input points area, since we adapt pen tablet for input device and its input points are discrete. The line shape of the segment is suited for expressing scratchiness realistic. We present some examples of scratchiness as results. The emotion like power and passion of the writer is expressed by our research. The oriental mood and the expression ability of character as a medium are extracted and the artistry raises more.