什么是做（快）3D插补一些好的库？ pferably在C ++ $ P $，但我intrested在别人了。 （特别是Matlab的）

What are some good libraries for doing (fast) 3D interpolation? Preferably in C++, but I'm intrested in others, too. (Especially Matlab)

推荐答案

在MATLAB中，3D插值通过的 INTERP3 。对于一些速度增益，通过你的方法参数preceded用星号（如'*立方而不是'立方'）。对于一些更多的速度增益，你可以解除插值code OUT的功能，并跳过所有的错误检查。

In Matlab, 3D interpolation is performed by INTERP3. For some speed gain, pass your method argument preceded by a star (e.g. '*cubic' instead of 'cubic'). For some more speed gain, you can just lift the interpolation code out of the function and skip all the error checking.

有一个很好的C ++实现可能会更快，比如一个presented 这里的Matlab的文件交换（从来没有测试）。

A good C++ implementation is likely to be faster, such as the one presented here on the Matlab File exchange (never tested it).