vtkMetaImageReader Class Reference

#include <vtkMetaImageReader.h>

Inheritance diagram for vtkMetaImageReader:

[legend]Collaboration diagram for vtkMetaImageReader:

[legend]List of all members.

Detailed Description

read binary UNC meta image data

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.

See also:: vtkImageReader

Created by:

Cedilnik, Andy

CVS contributions (if > 5%):

Cedilnik, Andy (99%)

CVS logs (CVSweb):

.h (/IO/vtkMetaImageReader.h)
.cxx (/IO/vtkMetaImageReader.cxx)

Tests:: vtkMetaImageReader (Tests)

Definition at line 79 of file vtkMetaImageReader.h.

Public Types

typedef vtkImageReader Superclass

Public Member Functions

virtual const char * GetClassName ()

virtual int IsA (const char *type)

void PrintSelf (ostream &os, vtkIndent indent)

virtual int CanReadFile (const char *name)

virtual void SetFileName (const char *fname)

virtual char * GetFileName ()

Static Public Member Functions

int IsTypeOf (const char *type)

vtkMetaImageReader * SafeDownCast (vtkObject *o)

vtkMetaImageReader * New ()

Protected Member Functions

vtkMetaImageReader ()

~vtkMetaImageReader ()

void ExecuteInformation ()

int GetFileInformation (const char *fname, int populate)

virtual void SetMHDFileName (const char *)

Protected Attributes

char * MHDFileName

Member Typedef Documentation

typedef vtkImageReader vtkMetaImageReader::Superclass

Reimplemented from vtkImageReader.
Definition at line 82 of file vtkMetaImageReader.h.

Constructor & Destructor Documentation

vtkMetaImageReader::vtkMetaImageReader ( ) [protected]

vtkMetaImageReader::~vtkMetaImageReader ( ) [protected]

Member Function Documentation

virtual const char* vtkMetaImageReader::GetClassName ( ) [virtual]

Reimplemented from vtkImageReader.

int vtkMetaImageReader::IsTypeOf ( const char * type ) [static]

Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeRevisionMacro found in vtkSetGet.h.
Reimplemented from vtkImageReader.

virtual int vtkMetaImageReader::IsA ( const char * type ) [virtual]

Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeRevisionMacro found in vtkSetGet.h.
Reimplemented from vtkImageReader.

vtkMetaImageReader* vtkMetaImageReader::SafeDownCast ( vtkObject * o ) [static]

Reimplemented from vtkImageReader.

void vtkMetaImageReader::PrintSelf ( ostream & os,

vtkIndent indent

) [virtual]

Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.
Reimplemented from vtkImageReader.

vtkMetaImageReader* vtkMetaImageReader::New ( ) [static]

Construct object with FlipNormals turned off and Normals set to true.
Reimplemented from vtkImageReader.

virtual void vtkMetaImageReader::SetFileName ( const char * fname ) [virtual]

Specify file name of meta file
Reimplemented from vtkImageReader2.

virtual char* vtkMetaImageReader::GetFileName ( ) [inline, virtual]

Specify file name of meta file
Reimplemented from vtkImageReader2.
Definition at line 91 of file vtkMetaImageReader.h.

virtual int vtkMetaImageReader::CanReadFile ( const char * name ) [virtual]

Test whether the file with the given name can be read by this reader.

void vtkMetaImageReader::ExecuteInformation ( ) [protected, virtual]

Reimplemented from vtkImageReader.

int vtkMetaImageReader::GetFileInformation ( const char * fname,

int populate

) [protected]

virtual void vtkMetaImageReader::SetMHDFileName ( const char * ) [protected, virtual]

Member Data Documentation

char* vtkMetaImageReader::MHDFileName [protected]

Definition at line 105 of file vtkMetaImageReader.h.

The documentation for this class was generated from the following file:

dox/IO/vtkMetaImageReader.h


Public Types
typedef vtkImageReader	Superclass
Public Member Functions
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)
virtual int	CanReadFile (const char *name)

virtual void	SetFileName (const char *fname)
virtual char *	GetFileName ()
Static Public Member Functions
int	IsTypeOf (const char *type)
vtkMetaImageReader *	SafeDownCast (vtkObject *o)
vtkMetaImageReader *	New ()
Protected Member Functions
	vtkMetaImageReader ()
	~vtkMetaImageReader ()
void	ExecuteInformation ()
int	GetFileInformation (const char *fname, int populate)
virtual void	SetMHDFileName (const char *)
Protected Attributes
char *	MHDFileName