动态模拟中国水墨画中的笔画绘制

Animating Strokes in Drawing Process of Chinese Ink Painting

提出一个动画生成工具,通过重建中国水墨画中的笔画,动态模拟水墨画原有的绘画过程.首先将输入的水墨画图像进行笔画拆分;然后根据笔画形状,包括轮廓、骨架信息,估算绘画轨迹,并通过类椭圆形的瞬时足迹模型中的一系列参数(如坐标、大小、方向)约束轨迹质量;文中的实时渲染模型用采样自原画的足迹纹理,动态渲染估算的轨迹.实验结果表明,与已有的方法相比,文中提出的方法可根据笔画轮廓自动提取其绘画轨迹,并对画笔在纸上的瞬时足迹进行建模.在应用价值方面,该工具可用于中国水墨画的鉴赏分析,艺术教育与实践.

By generating reproducible brush strokes of Chinese ink painting, we propose an animation tool forlively displaying its real drawing process. Contrasted with previous work, we automatically extract this trajectoryfrom the outlines of the shapes to draw and model the brush footprints; first an input image is decomposed intobrush strokes. Then we estimate the brush trajectory with shape descriptions and build a brush footprint model tomeasure the quality of the trajectory constrained by the variation along a stroke of the draw process parameters（e.g., location, size, and orientation）. Finally, the trajectories are dynamically rendered into brush strokes with ourreal-time rendering model. It is particularly useful for appreciation and education of Chinese ink painting.