00001 /* 00002 Copyright (c) 2010, The Barbarian Group 00003 All rights reserved. 00004 00005 Redistribution and use in source and binary forms, with or without modification, are permitted provided that 00006 the following conditions are met: 00007 00008 * Redistributions of source code must retain the above copyright notice, this list of conditions and 00009 the following disclaimer. 00010 * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 00011 the following disclaimer in the documentation and/or other materials provided with the distribution. 00012 00013 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED 00014 WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 00015 PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR 00016 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00017 TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00018 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00019 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00020 POSSIBILITY OF SUCH DAMAGE. 00021 */ 00022 00023 #pragma once 00024 00025 #include "cinder/Cinder.h" 00026 #include "cinder/Surface.h" 00027 00028 namespace cinder { namespace ip { 00029 00031 template<typename T> 00032 void threshold( SurfaceT<T> *surface, T value, const Area &area ); 00034 template<typename T> 00035 void threshold( SurfaceT<T> *surface, T value ); 00037 template<typename T> 00038 void threshold( const SurfaceT<T> &srcSurface, T value, SurfaceT<T> *dstSurface ); 00040 template<typename T> 00041 void threshold( const ChannelT<T> &srcSurface, T value, ChannelT<T> *dstSurface ); 00043 00044 template<typename T> 00045 void adaptiveThreshold( const ChannelT<T> &srcChannel, int32_t windowSize, float percentageDelta, ChannelT<T> *dstChannel ); 00047 00048 template<typename T> 00049 void adaptiveThreshold( ChannelT<T> *channel, int32_t windowSize, float percentageDelta ); 00051 00052 template<typename T> 00053 void adaptiveThresholdZero( ChannelT<T> *channel, int32_t windowSize ); 00054 00055 template<typename T> 00056 void adaptiveThresholdZero( const ChannelT<T> &srcChannel, int32_t windowSize, ChannelT<T> *dstChannel ); 00057 00058 template<typename T> 00059 class AdaptiveThresholdT { 00060 private: 00061 typedef typename CHANTRAIT<T>::Accum SUMT; 00062 struct Obj { 00063 Obj( ChannelT<T> *channel ); 00064 ~Obj(); 00065 00066 ChannelT<T> * mChannel; 00067 int32_t mImageWidth; 00068 int32_t mImageHeight; 00069 int8_t mIncrement; 00070 SUMT * mIntegralImage; 00071 }; 00072 public: 00073 AdaptiveThresholdT() {}; 00074 AdaptiveThresholdT( ChannelT<T> *channel ); 00075 void calculate( int32_t windowSize, float percentageDelta, ChannelT<T> *dstChannel ); 00076 00078 00079 AdaptiveThresholdT( const AdaptiveThresholdT &other ) { mObj = other.mObj; } 00080 AdaptiveThresholdT& operator=( const AdaptiveThresholdT &other ) { mObj = other.mObj; return *this; } 00081 bool operator==( const AdaptiveThresholdT &other ) { return mObj == other.mObj; } 00082 typedef typename shared_ptr<Obj>::unspecified_bool_type unspecified_bool_type; 00083 operator unspecified_bool_type() const { return static_cast<typename shared_ptr<Obj>::unspecified_bool_type>( mObj ); } 00084 void reset() { mObj.reset(); } 00086 private: 00087 shared_ptr<Obj> mObj; 00088 }; 00089 00090 typedef AdaptiveThresholdT<uint8_t> AdaptiveThreshold; 00091 typedef AdaptiveThresholdT<uint8_t> AdaptiveThreshold8u; 00092 typedef AdaptiveThresholdT<float> AdaptiveThreshold32f; 00093 00094 } } // namespace cinder::ip