Image Component Library (ICL)
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00001 /******************************************************************** 00002 ** Image Component Library (ICL) ** 00003 ** ** 00004 ** Copyright (C) 2006-2013 CITEC, University of Bielefeld ** 00005 ** Neuroinformatics Group ** 00006 ** Website: www.iclcv.org and ** 00007 ** http://opensource.cit-ec.de/projects/icl ** 00008 ** ** 00009 ** File : ICLFilter/src/ICLFilter/LUT2D.h ** 00010 ** Module : ICLFilter ** 00011 ** Authors: Christof Elbrechter ** 00012 ** ** 00013 ** ** 00014 ** GNU LESSER GENERAL PUBLIC LICENSE ** 00015 ** This file may be used under the terms of the GNU Lesser General ** 00016 ** Public License version 3.0 as published by the ** 00017 ** ** 00018 ** Free Software Foundation and appearing in the file LICENSE.LGPL ** 00019 ** included in the packaging of this file. Please review the ** 00020 ** following information to ensure the license requirements will ** 00021 ** be met: http://www.gnu.org/licenses/lgpl-3.0.txt ** 00022 ** ** 00023 ** The development of this software was supported by the ** 00024 ** Excellence Cluster EXC 277 Cognitive Interaction Technology. ** 00025 ** The Excellence Cluster EXC 277 is a grant of the Deutsche ** 00026 ** Forschungsgemeinschaft (DFG) in the context of the German ** 00027 ** Excellence Initiative. ** 00028 ** ** 00029 ********************************************************************/ 00030 00031 #pragma once 00032 00033 namespace icl{ 00034 namespace filter{ 00035 00037 00062 template<class RESULT_T=float,class IDX_T=int> 00063 class LUT2D{ 00064 // RESULT_T *lutOrig; 00065 RESULT_T *lut; 00066 int minVal; 00067 int range; 00068 00069 public: 00071 LUT2D(RESULT_T (*generator_func)(IDX_T v1, IDX_T v2),IDX_T minVal, IDX_T maxVal): 00072 minVal(minVal),range(maxVal-minVal){ 00073 00074 lut = (new RESULT_T[range*range])-(range+1)*minVal; 00075 00076 for(int i=minVal;i<maxVal;i++){ 00077 for(int j=minVal;j<maxVal;j++){ 00078 lut[i+range*j] = generator_func(i,j); 00079 } 00080 } 00081 } 00083 ~LUT2D(){ 00084 delete [] (lut + (range+1)*minVal); 00085 } 00087 inline RESULT_T operator()(IDX_T v1, IDX_T v2) const{ 00088 return lut[v1+range*v2]; 00089 } 00090 00091 }; 00092 } // namespace filter 00093 } 00094