OFFIS DCMTK: dcmimage/include/dcmtk/dcmimage/diqtpix.h Source File

00001 /*
00002  *
00003  *  Copyright (C) 2002-2005, OFFIS
00004  *
00005  *  This software and supporting documentation were developed by
00006  *
00007  *    Kuratorium OFFIS e.V.
00008  *    Healthcare Information and Communication Systems
00009  *    Escherweg 2
00010  *    D-26121 Oldenburg, Germany
00011  *
00012  *  THIS SOFTWARE IS MADE AVAILABLE,  AS IS,  AND OFFIS MAKES NO  WARRANTY
00013  *  REGARDING  THE  SOFTWARE,  ITS  PERFORMANCE,  ITS  MERCHANTABILITY  OR
00014  *  FITNESS FOR ANY PARTICULAR USE, FREEDOM FROM ANY COMPUTER DISEASES  OR
00015  *  ITS CONFORMITY TO ANY SPECIFICATION. THE ENTIRE RISK AS TO QUALITY AND
00016  *  PERFORMANCE OF THE SOFTWARE IS WITH THE USER.
00017  *
00018  *  Module:  dcmimage
00019  *
00020  *  Author:  Marco Eichelberg
00021  *
00022  *  Purpose: class DcmQuantPixel
00023  *
00024  *  Last Update:      $Author: meichel $
00025  *  Update Date:      $Date: 2005/12/08 16:01:53 $
00026  *  CVS/RCS Revision: $Revision: 1.3 $
00027  *  Status:           $State: Exp $
00028  *
00029  *  CVS/RCS Log at end of file
00030  *
00031  */
00032 
00033 
00034 #ifndef DIQTPIX_H
00035 #define DIQTPIX_H
00036 
00037 
00038 #include "dcmtk/config/osconfig.h"
00039 #include "dcmtk/ofstd/oftypes.h"   /* for OFBool */
00040 #include "dcmtk/dcmimage/diqttype.h"  /* for DcmQuantHashSize, DcmQuantComponent */
00041 #include "dcmtk/dcmimage/diqtstab.h"  /* for DcmScaleTable */
00042 
00043 
00048 class DcmQuantPixel
00049 {
00050 public:
00051 
00054   DcmQuantPixel()
00055   : red(0)
00056   , green(0)
00057   , blue(0)
00058   {
00059   }
00060 
00063   DcmQuantPixel(const DcmQuantPixel& arg)
00064   : red(arg.red)
00065   , green(arg.green)
00066   , blue(arg.blue)
00067   {
00068   }
00069 
00070   // we don't declare a destructor here, but the standard destructor will do.
00071 
00073   inline OFBool operator==(const DcmQuantPixel& src) const
00074   {
00075     return (red == src.red) && (green == src.green) && (blue == src.blue);
00076   }
00077 
00084   inline double luminance() const
00085   {
00086     return 0.299 * red + 0.587 * green + 0.114 * blue;
00087   }
00088 
00094   inline unsigned long hash() const
00095   {
00096     return ((OFstatic_cast(unsigned long, red) * 33023UL + OFstatic_cast(unsigned long, green) * 30013UL +
00097             OFstatic_cast(unsigned long, blue) * 27011UL) & 0x7fffffffUL) % DcmQuantHashSize;
00098   }
00099 
00103   inline DcmQuantComponent getRed() const
00104   {
00105     return red;
00106   }
00107 
00111   inline DcmQuantComponent getGreen() const
00112   {
00113     return green;
00114   }
00115 
00119   inline DcmQuantComponent getBlue() const
00120   {
00121     return blue;
00122   }
00123 
00129   inline void assign(
00130     DcmQuantComponent r,
00131     DcmQuantComponent g,
00132     DcmQuantComponent b)
00133   {
00134     red = r;
00135     green = g;
00136     blue = b;
00137   }
00138 
00147   inline void scale(
00148     DcmQuantComponent r,
00149     DcmQuantComponent g,
00150     DcmQuantComponent b,
00151     const DcmQuantScaleTable& table)
00152   {
00153     red   = table[r];
00154     green = table[g];
00155     blue  = table[b];
00156   }
00157 
00158 private:
00160   DcmQuantComponent red;
00161 
00163   DcmQuantComponent green;
00164 
00166   DcmQuantComponent blue;
00167 };
00168 
00169 
00170 #endif
00171 
00172 
00173 /*
00174  * CVS/RCS Log:
00175  * $Log: diqtpix.h,v $
00176  * Revision 1.3  2005/12/08 16:01:53  meichel
00177  * Changed include path schema for all DCMTK header files
00178  *
00179  * Revision 1.2  2003/12/23 12:20:07  joergr
00180  * Adapted type casts to new-style typecast operators defined in ofcast.h.
00181  * Updated copyright header.
00182  *
00183  * Revision 1.1  2002/01/25 13:32:07  meichel
00184  * Initial release of new color quantization classes and
00185  *   the dcmquant tool in module dcmimage.
00186  *
00187  *
00188  */