该库包含根据ISO 16610-21:2011实现开放轮廓高斯卷积滤波器的函数。该滤波器用于在表面计量中分离短波和长波分量轮廓和主要表面轮廓。粗糙度参数可以由短波分量剖面来计算。(The library contains functions for the implementation of an open contour Gaussian convolutional filter in accordance with ISO 1661