Main Page | Class Hierarchy | Class List | File List | Class Members | File Members

JpegSampleValue.h

Go to the documentation of this file.
00001 /* 00002 * steghide 0.5.1 - a steganography program 00003 * Copyright (C) 1999-2003 Stefan Hetzl <shetzl@chello.at> 00004 * 00005 * This program is free software; you can redistribute it and/or 00006 * modify it under the terms of the GNU General Public License 00007 * as published by the Free Software Foundation; either version 2 00008 * of the License, or (at your option) any later version. 00009 * 00010 * This program is distributed in the hope that it will be useful, 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00013 * GNU General Public License for more details. 00014 * 00015 * You should have received a copy of the GNU General Public License 00016 * along with this program; if not, write to the Free Software 00017 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00018 * 00019 */ 00020 00021 #ifndef SH_JPEGSAMPLE_H 00022 #define SH_JPEGSAMPLE_H 00023 00024 #include "SampleValue.h" 00025 00026 class JpegSampleValue : public SampleValue { 00027 public: 00028 JpegSampleValue (int c) ; 00029 00030 SampleValue* getNearestTargetSampleValue (EmbValue t) const ; 00031 UWORD32 calcDistance (const SampleValue *s) const ; 00032 std::string getName (void) const ; 00033 00034 SWORD16 getDctCoeff (void) const 00035 { return DctCoeff ; } ; 00036 00037 static EmbValue calcEValue (SWORD16 dctc) 00038 { return (((dctc >= 0) ? dctc : -dctc) % 2) ; } ; 00039 00040 private: 00041 SWORD16 DctCoeff ; 00042 } ; 00043 00044 #endif // ndef SH_JPEGSAMPLE_H

Generated on Fri Jul 16 19:41:21 2004 for steghide by doxygen 1.3.7