DGtal: DGtal::RawWriter< TImage, TFunctor > Struct Template Reference

#include <RawWriter.h>

Public Types
typedef TImage	Image
typedef TImage::Value	Value
typedef TFunctor	Functor

Public Member Functions
	BOOST_CONCEPT_ASSERT ((CUnaryFunctor< TFunctor, Value, unsigned char >))

Static Public Member Functions
static bool	exportRaw8 (const std::string &filename, const Image &aImage, const Functor &aFunctor=Functor())

Detailed Description

template<typename TImage, typename TFunctor = DefaultFunctor>
struct DGtal::RawWriter< TImage, TFunctor >

Aim: Raw binary export of an Image.

Description of template struct 'RawWriter'

A functor can be specified to convert image values to raw values (unsigned char for exportRaw8).

Template Parameters:

TImage	the Image type.
TFunctor	the type of functor used in the export.

Definition at line 68 of file RawWriter.h.

Member Typedef Documentation

template<typename TImage , typename TFunctor = DefaultFunctor>

typedef TFunctor DGtal::RawWriter< TImage, TFunctor >::Functor

Definition at line 74 of file RawWriter.h.

template<typename TImage , typename TFunctor = DefaultFunctor>

typedef TImage DGtal::RawWriter< TImage, TFunctor >::Image

Definition at line 72 of file RawWriter.h.

template<typename TImage , typename TFunctor = DefaultFunctor>

typedef TImage::Value DGtal::RawWriter< TImage, TFunctor >::Value

Definition at line 73 of file RawWriter.h.

Member Function Documentation

template<typename TImage , typename TFunctor = DefaultFunctor>

DGtal::RawWriter< TImage, TFunctor >::BOOST_CONCEPT_ASSERT ( (CUnaryFunctor< TFunctor, Value, unsigned char >) )

template<typename TImage , typename TFunctor = DefaultFunctor>

bool DGtal::RawWriter< I, C >::exportRaw8	(	const std::string &	filename,
		const Image &	aImage,
		const Functor &	aFunctor = `Functor()`
	)

static

Export an Image to Raw format (8bits, unsigned char).

Parameters:

filename	name of the output file
aImage	the image to export
aFunctor	functor used to cast image values

Returns:: true if no errors occur.

Todo:: catch IOerror excpetion

Definition at line 44 of file RawWriter.ih.

{
  ofstream out;
  typename I::Domain::Vector ext = aImage.extent();
  typename I::Domain domain = aImage.domain();
  typename I::Value val;
  
  out.open(filename.c_str(), ios_base::binary);
  
  //We scan the domain 
  for(typename I::Domain::ConstIterator it = domain.begin(), itend=domain.end();
      it!=itend;
      ++it)
    {
      val = aImage( (*it) );
      out.put( static_cast<unsigned char>(aFunctor (val) ) );
    }
  
  out.close(); 
  return true;
}

The documentation for this struct was generated from the following files: