105 lines
2.6 KiB
C
105 lines
2.6 KiB
C
|
/*
|
||
|
|
*
|
||
|
|
* Copyright (C) 2001-2011, OFFIS e.V.
|
||
|
|
* All rights reserved. See COPYRIGHT file for details.
|
||
|
|
*
|
||
|
|
* This software and supporting documentation were developed by
|
||
|
|
*
|
||
|
|
* OFFIS e.V.
|
||
|
|
* R&D Division Health
|
||
|
|
* Escherweg 2
|
||
|
|
* D-26121 Oldenburg, Germany
|
||
|
|
*
|
||
|
|
*
|
||
|
|
* Module: dcmjpeg
|
||
|
|
*
|
||
|
|
* Author: Joerg Riesmeier
|
||
|
|
*
|
||
|
|
* Purpose: Implements JPEG interface for plugable image formats
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
#ifndef DIPIJPEG_H
|
||
|
|
#define DIPIJPEG_H
|
||
|
|
|
||
|
|
#include "dcmtk/config/osconfig.h"
|
||
|
|
|
||
|
|
#include "dcmtk/dcmimgle/diplugin.h"
|
||
|
|
#include "dcmtk/dcmjpeg/djutils.h"
|
||
|
|
|
||
|
|
|
||
|
|
/*------------------------*
|
||
|
|
* forward declarations *
|
||
|
|
*------------------------*/
|
||
|
|
|
||
|
|
class DiImage;
|
||
|
|
|
||
|
|
|
||
|
|
/*---------------------*
|
||
|
|
* class declaration *
|
||
|
|
*---------------------*/
|
||
|
|
|
||
|
|
/** Implementation of a JPEG plugin for the dcmimgle/dcmimage library
|
||
|
|
*/
|
||
|
|
class DCMTK_DCMJPEG_EXPORT DiJPEGPlugin
|
||
|
|
: public DiPluginFormat
|
||
|
|
{
|
||
|
|
|
||
|
|
public:
|
||
|
|
|
||
|
|
/** constructor
|
||
|
|
*/
|
||
|
|
DiJPEGPlugin();
|
||
|
|
|
||
|
|
/** destructor
|
||
|
|
*/
|
||
|
|
virtual ~DiJPEGPlugin();
|
||
|
|
|
||
|
|
/** write given image to a file stream (JPEG format)
|
||
|
|
* @param image pointer to DICOM image object to be written
|
||
|
|
* @param stream stream to which the image is written (open in binary mode!)
|
||
|
|
* @param frame index of frame used for output (default: first frame = 0)
|
||
|
|
* @return true if successful, false otherwise
|
||
|
|
*/
|
||
|
|
virtual int write(DiImage *image,
|
||
|
|
FILE *stream,
|
||
|
|
const unsigned long frame = 0) const;
|
||
|
|
|
||
|
|
/** set quality value for JPEG compression
|
||
|
|
* @param quality quality value (0..100, in percent)
|
||
|
|
*/
|
||
|
|
void setQuality(const unsigned int quality);
|
||
|
|
|
||
|
|
/** set (sub) sampling for JPEG compression.
|
||
|
|
* Only used for color images. ESS_444 means no sub-sampling, ESS_422 horizontal
|
||
|
|
* subsampling of chroma components and ESS_422 horizontal and vertical subsampling
|
||
|
|
* of chroma components.
|
||
|
|
* @param sampling sampling (valid values: ESS_444, ESS_422 or ESS_411)
|
||
|
|
*/
|
||
|
|
void setSampling(const E_SubSampling sampling);
|
||
|
|
|
||
|
|
/** callback function used to report IJG warning messages and the like.
|
||
|
|
* Should not be called by user code directly.
|
||
|
|
* @param arg opaque pointer to JPEG compress structure
|
||
|
|
*/
|
||
|
|
void outputMessage(void *arg) const;
|
||
|
|
|
||
|
|
/** get version information of the TIFF library.
|
||
|
|
* Typical output format: "IJG, Version 6b 27-Mar-1998 (modified)"
|
||
|
|
* @return name and version number of the TIFF library
|
||
|
|
*/
|
||
|
|
static OFString getLibraryVersionString();
|
||
|
|
|
||
|
|
|
||
|
|
private:
|
||
|
|
|
||
|
|
/// quality value (0..100, in percent), default: 75
|
||
|
|
unsigned int Quality;
|
||
|
|
/// (sub) sampling: ESS_444, ESS_422 (default), ESS_411
|
||
|
|
E_SubSampling Sampling;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
#endif
|