高斯插值，可以用于图像处理中的差值。程序是用c++和itk库做的一个通用模板类，里面还有例子可以照着改。-In this submission, we offer the itk::GaussianInterpolationImageFunction which adds to the

growing collection of existing interpolation algorithms in ITK for resampling scalar images such as

the itk::LinearInterpolateImageFunction, itk::BSplineInterpolateImageFunction, and itk::WindowedSincInterpolateImageFunction. We provide a brief discussion of the theory behind the submission and the algorithmic implementation.