GDCM
2.2.3
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00001 /*========================================================================= 00002 00003 Program: GDCM (Grassroots DICOM). A DICOM library 00004 00005 Copyright (c) 2006-2011 Mathieu Malaterre 00006 All rights reserved. 00007 See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details. 00008 00009 This software is distributed WITHOUT ANY WARRANTY; without even 00010 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 00011 PURPOSE. See the above copyright notice for more information. 00012 00013 =========================================================================*/ 00014 #ifndef GDCMJPEG2000CODEC_H 00015 #define GDCMJPEG2000CODEC_H 00016 00017 #include "gdcmImageCodec.h" 00018 00019 namespace gdcm 00020 { 00021 00022 class JPEG2000Internals; 00030 class GDCM_EXPORT JPEG2000Codec : public ImageCodec 00031 { 00032 friend class ImageRegionReader; 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 DecodeExtent( 00062 char *buffer, 00063 unsigned int xmin, unsigned int xmax, 00064 unsigned int ymin, unsigned int ymax, 00065 unsigned int zmin, unsigned int zmax, 00066 std::istream & is 00067 ); 00068 00069 bool DecodeByStreams(std::istream &is, std::ostream &os); 00070 private: 00071 std::pair<char *, size_t> DecodeByStreamsCommon(char *dummy_buffer, size_t buf_size); 00072 bool GetHeaderInfo(const char * dummy_buffer, size_t len, TransferSyntax &ts); 00073 JPEG2000Internals *Internals; 00074 }; 00075 00076 } // end namespace gdcm 00077 00078 #endif //GDCMJPEG2000CODEC_H