FastMarchingImageFilter.cxx 初步小析

 版本：

/*========================================================================= Program: Insight Segmentation & Registration Toolkit Module: $RCSfile: FastMarchingImageFilter.cxx,v $ Language: C++ Date: $Date: 2009-03-17 21:44:42 $ Version: $Revision: 1.47 $ Copyright (c) Insight Software Consortium. All rights reserved. See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details. This software is distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the above copyright notices for more information. =========================================================================*/

 

 

前面的581行（到  caster1->SetOutputMaximum( 255 ); ）其實沒做什麼東西，第582行的writer1->Update();纔開始實現算法

 

跟蹤了半天，終於在code/common/itkFiniteDifferenceImageFilter.txx 中發現了註釋：

 

 

// Copy the input image to the output image. Algorithms will operate // directly on the output image and the update buffer.

 

看來算法是在輸出文件的時候才實現的

 

而且後面也有明確的註釋

  // Iterative algorithm

  看來容錯等準備功夫還是相當的多的

 

具體進去後，算法如何進行，還有待分析