gdcmJPEG2000Codec.h

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00001 /*=========================================================================
00002 
00003   Program: GDCM (Grassroots DICOM). A DICOM library
00004   Module:  $URL$
00005 
00006   Copyright (c) 2006-2010 Mathieu Malaterre
00007   All rights reserved.
00008   See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.
00009 
00010      This software is distributed WITHOUT ANY WARRANTY; without even
00011      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
00012      PURPOSE.  See the above copyright notice for more information.
00013 
00014 =========================================================================*/
00015 #ifndef GDCMJPEG2000CODEC_H
00016 #define GDCMJPEG2000CODEC_H
00017 
00018 #include "gdcmImageCodec.h"
00019 
00020 namespace gdcm
00021 {
00022   
00023 class JPEG2000Internals;
00031 class GDCM_EXPORT JPEG2000Codec : public ImageCodec
00032 {
00033   friend class Bitmap;
00034 public:
00035   JPEG2000Codec();
00036   ~JPEG2000Codec();
00037 
00038   bool CanDecode(TransferSyntax const &ts) const;
00039   bool CanCode(TransferSyntax const &ts) const;
00040 
00041   bool Decode(DataElement const &is, DataElement &os);
00042   bool Code(DataElement const &in, DataElement &out);
00043 
00044   virtual bool GetHeaderInfo(std::istream &is, TransferSyntax &ts);
00045 
00046   // JPEG-2000 / OpenJPEG specific way of encoding lossy-ness
00047   // ref: http://www.openjpeg.org/index.php?menu=doc#encoder
00048   void SetRate(unsigned int idx, double rate);
00049   double GetRate(unsigned int idx = 0) const;
00050 
00051   void SetQuality(unsigned int idx, double q);
00052   double GetQuality(unsigned int idx = 0) const;
00053 
00054   void SetTileSize(unsigned int tx, unsigned int ty);
00055 
00056   void SetNumberOfResolutions(unsigned int nres);
00057 
00058   void SetReversible(bool res);
00059 
00060 protected:
00061   bool Decode(std::istream &is, std::ostream &os);
00062 private:
00063   bool GetHeaderInfo(const char * dummy_buffer, size_t len, TransferSyntax &ts);
00064   JPEG2000Internals *Internals;
00065 };
00066 
00067 } // end namespace gdcm
00068 
00069 #endif //GDCMJPEG2000CODEC_H

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