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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 itkJPEG2000ImageIO_h
#define itkJPEG2000ImageIO_h
#include <fstream>
#include "itkStreamingImageIOBase.h"
#include "itkAutoPointer.h"
namespace itk
{
class JPEG2000ImageIOInternal;
/** \class JPEG2000ImageIO
*
* \brief Supports for the JPEG2000 file format based on openjpeg
*
* JPEG2000 offers a large collection of interesting features including:
* compression (lossless and lossy), streaming, multi-channel images.
*
*
* This code was contributed in the Insight Journal paper:
* "Support for Streaming the JPEG2000 File Format"
* by Mosaliganti K., Ibanez L., Megason S
* https://hdl.handle.net/10380/3187
* http://www.insight-journal.org/browse/publication/741
*
*
* \ingroup IOFilters
* \ingroup ITKReview
*/
class JPEG2000ImageIO:public StreamingImageIOBase
{
public:
/** Standard class typedefs. */
typedef JPEG2000ImageIO Self;
typedef StreamingImageIOBase Superclass;
typedef SmartPointer< Self > Pointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(JPEG2000ImageIO, StreamingImageIOBase);
/*-------- 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;
/** Method for supporting streaming. Given a requested region, determine what
* could be the region that we can read from the file. This is called the
* streamable region, which will be smaller than the LargestPossibleRegion and
* greater or equal to the RequestedRegion */
virtual ImageIORegion
GenerateStreamableReadRegionFromRequestedRegion(const ImageIORegion & requested) const ITK_OVERRIDE;
/** Method required by the base class StreamingImageIOBase */
virtual SizeType GetHeaderSize(void) const ITK_OVERRIDE;
/** Define the tile size to use when writing out an image. */
void SetTileSize(int x, int y);
/** Currently JPEG2000 does not support streamed writing
*
* These methods are re-overridden to not support streaming for
* now...
*/
virtual bool CanStreamWrite( void ) ITK_OVERRIDE;
protected:
JPEG2000ImageIO();
~JPEG2000ImageIO();
virtual void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE;
private:
JPEG2000ImageIO(const Self &) ITK_DELETE_FUNCTION;
void operator=(const Self &) ITK_DELETE_FUNCTION;
AutoPointer< JPEG2000ImageIOInternal > m_Internal;
typedef ImageIORegion::SizeValueType SizeValueType;
typedef ImageIORegion::IndexValueType IndexValueType;
void ComputeRegionInTileBoundaries(unsigned int dimension,
SizeValueType tileSize, ImageIORegion & streamableRegion) const;
};
} // end namespace itk
#endif // itkJPEG2000ImageIO_h
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