一种铅笔滤镜生成算法及其在GPU上的实现

A Method for Generation of Pencil Filter and its Implementation on GPU

提出了一种基于卷积算子的铅笔滤镜生成算法,通过分析真实铅笔纹理的结构特征,抽象出铅笔笔画的简单数学模型.根据该模型可以方便地确定其对应的笔刷模板(卷积算子),进而获得用户所需要的铅笔纹理.本文将该算法与图形处理单元(GPU)相结合,借助于GPU的硬件加速功能成功地实现了对视频图像的实时铅笔画风格绘制.

We present a pencil texture generation method based on the pencil filter. By the method, a simple mathematical model of pencil stroke can be created though analyzing the character of the real pencil texture. When the model existed, the pencil template can be attained easily, and the pencil texture can be conveniently generated according to users＇ needs. With the help of contemporary graphics hardware （GPU, or Graphics Processing Unit）, we may further achieve real-time video rendering by the method.