基于唐卡图像的抽象化绘制方法研究

Method Research of Abstract Rending Based on Thangka Image

唐卡图像的抽象化是用非真实感技术表现唐卡的一种形式。根据唐卡图像线条和色彩的特点,提出一种抽象化绘制方法。首先,根据唐卡RGB颜色空间的梯度提出粗略的轮廓,以此为输入对其进行边缘切向流构造,在此基础上进行基于高斯差分滤波提取平滑的唐卡线条画;与此同时,对唐卡图像进行双边滤波、剔除干扰信息并模糊化图像;然后将线条画和模糊的图像进行融合。针对不同的唐卡图像进行实验,结果显示该方法能对唐卡图像进行有效、高质量的抽象化处理。

The abstraction of the thangka image is performance style of non-photorealistic rendering based on thangka. An abstract rending method is proposed on account of the characteristics of thangka image ： line and color. Firstly, extracting the rough outline using the gradient of thangka in RGB color space, the outline image is input to construct edge tangential flow. Then flow-based difference-of-Gaussians filter smooth thangka image linesis used. At the same time, bilateral filtering is used in the ges. At last, in producing thangka fusing both of the result, a variety of abstraction rending of thangka image image to eliminate interference information and blurred imaexperimental objects are used, The results show the effectiveness is effective, high-quality.