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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 itkDCMTKImageIO_h
#define itkDCMTKImageIO_h
#include "ITKIODCMTKExport.h"
#include <fstream>
#include <stdio.h>
#include "itkImageIOBase.h"
class DicomImage;
namespace itk
{
/** \class DCMTKImageIO
*
* \brief Read DICOM image file format.
*
* \ingroup IOFilters
*
* \ingroup ITKIODCMTK
*/
class ITKIODCMTK_EXPORT DCMTKImageIO:public ImageIOBase
{
public:
/** Standard class typedefs. */
typedef DCMTKImageIO Self;
typedef ImageIOBase Superclass;
typedef SmartPointer< Self > Pointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(DCMTKImageIO, ImageIOBase);
/** enum for DCMTK log level. These are defined here without
* reference to DCMTK library enumerations, to avoid including
* dcmtk headers in this header.
*/
enum LogLevel
{
TRACE_LOG_LEVEL = 0,
DEBUG_LOG_LEVEL,
INFO_LOG_LEVEL ,
WARN_LOG_LEVEL ,
ERROR_LOG_LEVEL,
FATAL_LOG_LEVEL,
OFF_LOG_LEVEL,
};
/** */
void SetDicomImagePointer( DicomImage* UserProvided)
{
m_DImage = UserProvided;
m_DicomImageSetByUser = true;
}
/*-------- This part of the interfaces deals with reading data. ----- */
/** Determine the file type. Returns true if this ImageIO can read the
* file specified. */
virtual bool CanReadFile(const char *) ITK_OVERRIDE;
/** Set the spacing and dimension information for the set filename. */
virtual void ReadImageInformation() ITK_OVERRIDE;
/** Reads the data from disk into the memory buffer provided. */
virtual void Read(void *buffer) ITK_OVERRIDE;
/*-------- This part of the interfaces deals with writing data. ----- */
/** Determine the file type. Returns true if this ImageIO can write the
* file specified. */
virtual bool CanWriteFile(const char *) ITK_OVERRIDE;
/** Set the spacing and dimension information for the set filename. */
virtual void WriteImageInformation() ITK_OVERRIDE;
/** Writes the data to disk from the memory buffer provided. Make sure
* that the IORegions has been set properly. */
virtual void Write(const void *buffer) ITK_OVERRIDE;
/** Set the DCMTK Message Logging Level */
void SetLogLevel(LogLevel level);
/** Get the DCMTK Message Logging Level */
LogLevel GetLogLevel() const;
DCMTKImageIO();
~DCMTKImageIO();
void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE;
private:
ITK_DISALLOW_COPY_AND_ASSIGN(DCMTKImageIO);
void OpenDicomImage();
/** Finds the correct type to call the templated function ReorderRGBValues(...) */
void ReorderRGBValues(void *buffer, const void* data, unsigned long count, unsigned int voxel_size);
/** Reorders RGB values in an image from color-by-plane (R1R2R3...G1G2G3...B1B2B3...)
* to color-by-pixel (R1G1B1...R2G2B2...R3G3B3...). `voxel_size` specifies the pixel size: It should
* be 3 for RGB images, and 4 for RGBA images.
* The code in this function is based on code available in DCMTK dcmimage/include/dcmtk/dcmimage/dicoopxt.h
* in the Convert(...) function.*/
template<typename T>
void
ReorderRGBValues(void *buffer, const void* data, unsigned long count, unsigned int voxel_size)
{
T* output_buffer = static_cast<T*>(buffer);
const T** input_buffer = static_cast<const T**>(const_cast<void *>(data));
for (unsigned long pos = 0; pos < count; ++pos)
{
for (unsigned int color = 0; color < voxel_size; ++color)
{
*(output_buffer++)=input_buffer[color][pos];
}
}
}
/*----- internal helpers --------------------------------------------*/
bool m_UseJPEGCodec;
bool m_UseJPLSCodec;
bool m_UseRLECodec;
DicomImage* m_DImage;
bool m_DicomImageSetByUser;
double m_RescaleSlope;
double m_RescaleIntercept;
std::string m_LastFileName;
};
} // end namespace itk
#endif // itkDCMTKImageIO_h
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