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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef sitkImageReaderBase_h
#define sitkImageReaderBase_h
#include "sitkProcessObject.h"
#include "sitkPixelIDValues.h"
#include "sitkIO.h"
namespace itk {
// Forward decalaration for pointer
class ImageIOBase;
template<class T>
class SmartPointer;
namespace simple {
/** \class ImageReaderBase
* \brief An abract base class for image readers
*
*/
class SITKIO_EXPORT ImageReaderBase :
public ProcessObject
{
public:
typedef ImageReaderBase Self;
ImageReaderBase();
// The destructor will be implicitly declared as public.
/** \brief Set/Get The output PixelType of the image.
*
* By default the value is sitkUnknown, which enable the output
* pixel type to be same as the file. If the pixel type is
* specified then the itk::ConvertPixelBuffer will be used to
* convert the pixels.
* @{
*/
SITK_RETURN_SELF_TYPE_HEADER SetOutputPixelType( PixelIDValueEnum pixelID );
PixelIDValueEnum GetOutputPixelType( void ) const;
/* @} */
virtual Image Execute() = 0;
virtual std::string ToString() const;
/** \brief Set/Get loading private DICOM tags into Image's MetaData
*
* Unknown private tags may be encoded with Base64 encoding.
* @{
*/
virtual Self& SetLoadPrivateTags(bool loadPrivateTags);
virtual bool GetLoadPrivateTags() const;
virtual void LoadPrivateTagsOn();
virtual void LoadPrivateTagsOff();
/* @} */
protected:
itk::SmartPointer<ImageIOBase> GetImageIOBase(const std::string &fileName);
void GetPixelIDFromImageIO( const std::string &fileName,
PixelIDValueType &outPixelType,
unsigned int & outDimensions);
void GetPixelIDFromImageIO( itk::ImageIOBase* iobase,
PixelIDValueType &outPixelType,
unsigned int & outDimensions);
unsigned int GetDimensionFromImageIO( const std::string &fileName, unsigned int i);
unsigned int GetDimensionFromImageIO( itk::ImageIOBase* iobase, unsigned int i);
private:
PixelIDValueType ExecuteInternalReadScalar( int componentType );
PixelIDValueType ExecuteInternalReadVector( int componentType );
PixelIDValueType ExecuteInternalReadComplex( int componentType );
PixelIDValueEnum m_OutputPixelType;
bool m_LoadPrivateTags;
};
}
}
#endif // sitkImageReaderBase_h
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