The whole process is the morphology processing based on the gray-level image and binarymask, and is simple and easy to implement.
整个过程基本是对灰度图像和二值模板的形态处理，简单易行。
2
Gray scale mask method is a novel way of fabricating binary optical elements.
灰度掩模法是一种新的二元光学器件制做方法。
3
Compared with the technology for binary optical mask, the technology has the following strong points: process simplification, short period of fabrication and easy operation.