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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkMetaImageReader.h,v $
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/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 notice for more information.
=========================================================================*/
// .NAME vtkMetaImageReader - read binary UNC meta image data
// .SECTION Description
// One of the formats for which a reader is already available in the toolkit is
// the MetaImage file format. This is a fairly simple yet powerful format
// consisting of a text header and a binary data section. The following
// instructions describe how you can write a MetaImage header for the data that
// you download from the BrainWeb page.
//
// The minimal structure of the MetaImage header is the following:
//
// NDims = 3
// DimSize = 181 217 181
// ElementType = MET_UCHAR
// ElementSpacing = 1.0 1.0 1.0
// ElementByteOrderMSB = False
// ElementDataFile = brainweb1.raw
//
// * NDims indicate that this is a 3D image. ITK can handle images of
// arbitrary dimension.
// * DimSize indicates the size of the volume in pixels along each
// direction.
// * ElementType indicate the primitive type used for pixels. In this case
// is "unsigned char", implying that the data is digitized in 8 bits /
// pixel.
// * ElementSpacing indicates the physical separation between the center of
// one pixel and the center of the next pixel along each direction in space.
// The units used are millimeters.
// * ElementByteOrderMSB indicates is the data is encoded in little or big
// endian order. You might want to play with this value when moving data
// between different computer platforms.
// * ElementDataFile is the name of the file containing the raw binary data
// of the image. This file must be in the same directory as the header.
//
// MetaImage headers are expected to have extension: ".mha" or ".mhd"
//
// Once you write this header text file, it should be possible to read the
// image into your ITK based application using the itk::FileIOToImageFilter
// class.
// .SECTION Caveats
//
// .SECTION See Also
// vtkImageReader
#ifndef __vtkMetaImageReader_h
#define __vtkMetaImageReader_h
#include "vtkImageReader.h"
class VTK_IO_EXPORT vtkMetaImageReader : public vtkImageReader
{
public:
vtkTypeRevisionMacro(vtkMetaImageReader,vtkImageReader);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Construct object with FlipNormals turned off and Normals set to true.
static vtkMetaImageReader *New();
// Description:
// Specify file name of meta file
virtual void SetFileName(const char* fname);
virtual char* GetFileName() { return this->MHDFileName; }
// Description:
// Test whether the file with the given name can be read by this
// reader.
virtual int CanReadFile(const char* name);
protected:
vtkMetaImageReader();
~vtkMetaImageReader();
virtual int RequestInformation(vtkInformation* request,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector);
int GetFileInformation(const char* fname, int populate);
vtkSetStringMacro(MHDFileName);
char* MHDFileName;
private:
vtkMetaImageReader(const vtkMetaImageReader&); // Not implemented.
void operator=(const vtkMetaImageReader&); // Not implemented.
};
#endif
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