convolve.cpp

来自「这是一个用于立体匹配的程序。 可以用来进行立体匹配！」· C++ 代码 · 共 23 行

///////////////////////////////////////////////////////////////////////////
//
// NAME
//  Convolve.cpp -- separable and non-separable linear convolution
//
// DESIGN NOTES
//  An intermediate row buffer is allocated to fill in the border pixels
//  required so that all convolutions are well defined.  The row buffer
//  is floating point, so that all intermediate results can be computed
//  with minimal loss in precision.  This also avoids excessive type
//  conversion during convolution, since the kernels are floats anyway.
//
//  If fixpoint variants are desired for efficiency (e.g., using
//  multimedia extensions), then this would have to be modified.
//
//  TODO:  this current version is not very efficient.  For example,
//  the separable code uses an intermediate image, instead of just a
//  row buffer.  Also, downsampling convolution could be more efficient.
//
// SEE ALSO
//  Convolve.h          longer description of these routines
//
// Copyright