基于灰度跃变的脸部器官定位方法

文章介绍了一种利用器官周边存在灰度跃变的物理现象实现脸部器官定位的方法。其原理是将多次微分运算施加于肖像的脸部区域，从而突显出脸部的高亮度分布区。对这些高亮度区域运用基于脸部几何特征的筛选规则排除干扰区域后，获得脸部器官所在的几何中心，为下一步通过“器官挪移”、“挤眉弄眼”、“假面易容”等手法，创作具有漫画风格的手机动画脸谱奠定基础。

A Facial Organs Positioning Method Based on Grayness Mutation

This paper presents a facial organs positioning method based on grayness mutation at the organs＇ circumambience. The principle is to impose multiple differential operators on facial region, which highlights the nearby area of the facial organs and form many high-brightness distribution areas. Then by imposing several selection rules on the high-brightness areas to exclude interference region and obtained valid regions which fit with the facial organs geometrical centers. As further application, we may create a mobile cartoon-style personal mask, through ＂organ diversion,＂ ＂wink wearing masks＂ and other transfiguration techniques.