147 lines
3.2 KiB
C++
147 lines
3.2 KiB
C++
/*
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*
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* Copyright (C) 2001-2011, OFFIS e.V.
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* All rights reserved. See COPYRIGHT file for details.
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*
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* This software and supporting documentation were developed by
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*
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* OFFIS e.V.
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* R&D Division Health
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* Escherweg 2
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* D-26121 Oldenburg, Germany
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*
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*
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* Module: dcmjpeg
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*
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* Author: Marco Eichelberg
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*
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* Purpose: Implements TIFF interface for plugable image formats
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*
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*/
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#ifndef DIPITIFF_H
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#define DIPITIFF_H
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#include "dcmtk/config/osconfig.h"
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#ifdef WITH_LIBTIFF
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#include "dcmtk/ofstd/ofstring.h"
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#include "dcmtk/dcmimgle/diplugin.h"
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#include "dcmtk/dcmimage/dicdefin.h"
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/*------------------------*
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* forward declarations *
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*------------------------*/
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class DiImage;
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/*--------------------*
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* type definitions *
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*--------------------*/
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/** describes the different types of compression supported by
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* the TIFF plugin. Enumeration depends on capabilities
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* of underlying TIFF library (libtiff).
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*/
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enum DiTIFFCompression
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{
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/// PackBits compression (RLE)
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E_tiffPackBitsCompression,
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/// LZW compression
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E_tiffLZWCompression,
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/// uncompressed
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E_tiffNoCompression
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};
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/** describes the optional predictor used with TIFF LZW compression
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*/
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enum DiTIFFLZWPredictor
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{
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/// omit preditor tag (defaults to no prediction)
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E_tiffLZWPredictorDefault,
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/// predictor 1: no prediction scheme
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E_tiffLZWPredictorNoPrediction,
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/// predictor 2: use horizontal differencing
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E_tiffLZWPredictorHDifferencing
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};
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/*---------------------*
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* class declaration *
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*---------------------*/
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/** Implementation of a TIFF plugin for the dcmimgle/dcmimage library
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*/
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class DCMTK_DCMIMAGE_EXPORT DiTIFFPlugin
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: public DiPluginFormat
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{
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public:
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/** constructor
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*/
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DiTIFFPlugin();
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/** destructor
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*/
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virtual ~DiTIFFPlugin();
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/** write given image to a file stream (TIFF format)
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* @param image pointer to DICOM image object to be written
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* @param stream stream to which the image is written (open in binary mode!)
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* @param frame index of frame used for output (default: first frame = 0)
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* @return true if successful, false otherwise
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*/
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virtual int write(DiImage *image,
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FILE *stream,
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const unsigned long frame = 0) const;
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/** set compression type for TIFF creation
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* @param ctype compression type
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*/
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void setCompressionType(DiTIFFCompression ctype);
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/** set predictor type for LZW compression
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* @param pred predictor type
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*/
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void setLZWPredictor(DiTIFFLZWPredictor pred);
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/** set rows per strip for TIFF creation.
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* @param rows rows per strip. By default (value 0),
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* rows per strip is calculated automatically such that
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* each strip contains about 8 kByte of data.
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*/
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void setRowsPerStrip(unsigned long rows = 0);
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/** get version information of the TIFF library.
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* Typical output format: "LIBTIFF, Version 3.5.7"
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* @return name and version number of the TIFF library
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*/
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static OFString getLibraryVersionString();
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private:
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/// TIFF compression type
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DiTIFFCompression compressionType;
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/// TIFF predictor type
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DiTIFFLZWPredictor predictor;
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/// TIFF rows per strip
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unsigned long rowsPerStrip;
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};
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#endif
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#endif
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