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aacf188e83
Conflicts: modules/ocl/include/opencv2/ocl/ocl.hpp modules/ocl/src/arithm.cpp modules/ocl/src/build_warps.cpp modules/ocl/src/color.cpp modules/ocl/src/haar.cpp modules/ocl/src/imgproc.cpp modules/ocl/src/split_merge.cpp modules/ocl/test/test_color.cpp samples/cpp/3calibration.cpp samples/cpp/OpenEXRimages_HDR_Retina_toneMapping.cpp samples/cpp/OpenEXRimages_HDR_Retina_toneMapping_video.cpp samples/cpp/Qt_sample/main.cpp samples/cpp/camshiftdemo.cpp samples/cpp/descriptor_extractor_matcher.cpp samples/cpp/distrans.cpp samples/cpp/generic_descriptor_match.cpp samples/cpp/grabcut.cpp samples/cpp/morphology2.cpp samples/cpp/segment_objects.cpp samples/cpp/stereo_calib.cpp samples/cpp/tutorial_code/Histograms_Matching/compareHist_Demo.cpp samples/cpp/tutorial_code/core/mat_mask_operations/mat_mask_operations.cpp samples/cpp/tutorial_code/introduction/display_image/display_image.cpp samples/cpp/tutorial_code/introduction/windows_visual_studio_Opencv/Test.cpp samples/cpp/tutorial_code/objectDetection/objectDetection.cpp samples/cpp/tutorial_code/objectDetection/objectDetection2.cpp samples/cpp/video_dmtx.cpp
617 lines
18 KiB
C++
617 lines
18 KiB
C++
#include "opencv2/core/core.hpp"
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#include "opencv2/ml/ml.hpp"
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#include "opencv2/highgui/highgui.hpp"
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#include <stdio.h>
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using namespace std;
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using namespace cv;
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const Scalar WHITE_COLOR = Scalar(255,255,255);
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const string winName = "points";
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const int testStep = 5;
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Mat img, imgDst;
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RNG rng;
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vector<Point> trainedPoints;
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vector<int> trainedPointsMarkers;
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vector<Scalar> classColors;
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#define _NBC_ 0 // normal Bayessian classifier
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#define _KNN_ 0 // k nearest neighbors classifier
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#define _SVM_ 0 // support vectors machine
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#define _DT_ 1 // decision tree
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#define _BT_ 0 // ADA Boost
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#define _GBT_ 0 // gradient boosted trees
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#define _RF_ 0 // random forest
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#define _ERT_ 0 // extremely randomized trees
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#define _ANN_ 0 // artificial neural networks
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#define _EM_ 0 // expectation-maximization
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static void on_mouse( int event, int x, int y, int /*flags*/, void* )
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{
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if( img.empty() )
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return;
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int updateFlag = 0;
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if( event == EVENT_LBUTTONUP )
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{
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if( classColors.empty() )
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return;
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trainedPoints.push_back( Point(x,y) );
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trainedPointsMarkers.push_back( (int)(classColors.size()-1) );
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updateFlag = true;
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}
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else if( event == EVENT_RBUTTONUP )
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{
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#if _BT_
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if( classColors.size() < 2 )
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{
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#endif
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classColors.push_back( Scalar((uchar)rng(256), (uchar)rng(256), (uchar)rng(256)) );
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updateFlag = true;
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#if _BT_
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}
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else
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cout << "New class can not be added, because CvBoost can only be used for 2-class classification" << endl;
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#endif
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}
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//draw
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if( updateFlag )
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{
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img = Scalar::all(0);
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// put the text
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stringstream text;
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text << "current class " << classColors.size()-1;
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putText( img, text.str(), Point(10,25), FONT_HERSHEY_SIMPLEX, 0.8f, WHITE_COLOR, 2 );
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text.str("");
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text << "total classes " << classColors.size();
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putText( img, text.str(), Point(10,50), FONT_HERSHEY_SIMPLEX, 0.8f, WHITE_COLOR, 2 );
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text.str("");
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text << "total points " << trainedPoints.size();
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putText(img, text.str(), Point(10,75), FONT_HERSHEY_SIMPLEX, 0.8f, WHITE_COLOR, 2 );
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// draw points
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for( size_t i = 0; i < trainedPoints.size(); i++ )
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circle( img, trainedPoints[i], 5, classColors[trainedPointsMarkers[i]], -1 );
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imshow( winName, img );
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}
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}
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static void prepare_train_data( Mat& samples, Mat& classes )
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{
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Mat( trainedPoints ).copyTo( samples );
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Mat( trainedPointsMarkers ).copyTo( classes );
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// reshape trainData and change its type
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samples = samples.reshape( 1, samples.rows );
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samples.convertTo( samples, CV_32FC1 );
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}
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#if _NBC_
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static void find_decision_boundary_NBC()
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{
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img.copyTo( imgDst );
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Mat trainSamples, trainClasses;
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prepare_train_data( trainSamples, trainClasses );
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// learn classifier
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CvNormalBayesClassifier normalBayesClassifier( trainSamples, trainClasses );
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Mat testSample( 1, 2, CV_32FC1 );
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for( int y = 0; y < img.rows; y += testStep )
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{
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for( int x = 0; x < img.cols; x += testStep )
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{
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testSample.at<float>(0) = (float)x;
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testSample.at<float>(1) = (float)y;
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int response = (int)normalBayesClassifier.predict( testSample );
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circle( imgDst, Point(x,y), 1, classColors[response] );
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}
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}
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}
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#endif
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#if _KNN_
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static void find_decision_boundary_KNN( int K )
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{
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img.copyTo( imgDst );
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Mat trainSamples, trainClasses;
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prepare_train_data( trainSamples, trainClasses );
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// learn classifier
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CvKNearest knnClassifier( trainSamples, trainClasses, Mat(), false, K );
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Mat testSample( 1, 2, CV_32FC1 );
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for( int y = 0; y < img.rows; y += testStep )
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{
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for( int x = 0; x < img.cols; x += testStep )
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{
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testSample.at<float>(0) = (float)x;
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testSample.at<float>(1) = (float)y;
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int response = (int)knnClassifier.find_nearest( testSample, K );
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circle( imgDst, Point(x,y), 1, classColors[response] );
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}
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}
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}
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#endif
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#if _SVM_
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static void find_decision_boundary_SVM( CvSVMParams params )
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{
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img.copyTo( imgDst );
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Mat trainSamples, trainClasses;
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prepare_train_data( trainSamples, trainClasses );
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// learn classifier
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CvSVM svmClassifier( trainSamples, trainClasses, Mat(), Mat(), params );
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Mat testSample( 1, 2, CV_32FC1 );
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for( int y = 0; y < img.rows; y += testStep )
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{
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for( int x = 0; x < img.cols; x += testStep )
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{
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testSample.at<float>(0) = (float)x;
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testSample.at<float>(1) = (float)y;
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int response = (int)svmClassifier.predict( testSample );
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circle( imgDst, Point(x,y), 2, classColors[response], 1 );
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}
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}
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for( int i = 0; i < svmClassifier.get_support_vector_count(); i++ )
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{
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const float* supportVector = svmClassifier.get_support_vector(i);
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circle( imgDst, Point(supportVector[0],supportVector[1]), 5, Scalar(255,255,255), -1 );
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}
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}
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#endif
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#if _DT_
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static void find_decision_boundary_DT()
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{
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img.copyTo( imgDst );
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Mat trainSamples, trainClasses;
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prepare_train_data( trainSamples, trainClasses );
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// learn classifier
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CvDTree dtree;
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Mat var_types( 1, trainSamples.cols + 1, CV_8UC1, Scalar(CV_VAR_ORDERED) );
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var_types.at<uchar>( trainSamples.cols ) = CV_VAR_CATEGORICAL;
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CvDTreeParams params;
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params.max_depth = 8;
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params.min_sample_count = 2;
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params.use_surrogates = false;
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params.cv_folds = 0; // the number of cross-validation folds
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params.use_1se_rule = false;
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params.truncate_pruned_tree = false;
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dtree.train( trainSamples, CV_ROW_SAMPLE, trainClasses,
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Mat(), Mat(), var_types, Mat(), params );
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Mat testSample(1, 2, CV_32FC1 );
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for( int y = 0; y < img.rows; y += testStep )
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{
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for( int x = 0; x < img.cols; x += testStep )
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{
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testSample.at<float>(0) = (float)x;
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testSample.at<float>(1) = (float)y;
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int response = (int)dtree.predict( testSample )->value;
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circle( imgDst, Point(x,y), 2, classColors[response], 1 );
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}
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}
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}
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#endif
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#if _BT_
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void find_decision_boundary_BT()
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{
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img.copyTo( imgDst );
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Mat trainSamples, trainClasses;
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prepare_train_data( trainSamples, trainClasses );
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// learn classifier
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CvBoost boost;
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Mat var_types( 1, trainSamples.cols + 1, CV_8UC1, Scalar(CV_VAR_ORDERED) );
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var_types.at<uchar>( trainSamples.cols ) = CV_VAR_CATEGORICAL;
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CvBoostParams params( CvBoost::DISCRETE, // boost_type
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100, // weak_count
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0.95, // weight_trim_rate
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2, // max_depth
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false, //use_surrogates
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0 // priors
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);
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boost.train( trainSamples, CV_ROW_SAMPLE, trainClasses, Mat(), Mat(), var_types, Mat(), params );
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Mat testSample(1, 2, CV_32FC1 );
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for( int y = 0; y < img.rows; y += testStep )
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{
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for( int x = 0; x < img.cols; x += testStep )
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{
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testSample.at<float>(0) = (float)x;
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testSample.at<float>(1) = (float)y;
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int response = (int)boost.predict( testSample );
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circle( imgDst, Point(x,y), 2, classColors[response], 1 );
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}
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}
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}
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#endif
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#if _GBT_
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void find_decision_boundary_GBT()
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{
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img.copyTo( imgDst );
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Mat trainSamples, trainClasses;
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prepare_train_data( trainSamples, trainClasses );
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// learn classifier
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CvGBTrees gbtrees;
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Mat var_types( 1, trainSamples.cols + 1, CV_8UC1, Scalar(CV_VAR_ORDERED) );
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var_types.at<uchar>( trainSamples.cols ) = CV_VAR_CATEGORICAL;
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CvGBTreesParams params( CvGBTrees::DEVIANCE_LOSS, // loss_function_type
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100, // weak_count
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0.1f, // shrinkage
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1.0f, // subsample_portion
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2, // max_depth
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false // use_surrogates )
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);
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gbtrees.train( trainSamples, CV_ROW_SAMPLE, trainClasses, Mat(), Mat(), var_types, Mat(), params );
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Mat testSample(1, 2, CV_32FC1 );
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for( int y = 0; y < img.rows; y += testStep )
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{
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for( int x = 0; x < img.cols; x += testStep )
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{
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testSample.at<float>(0) = (float)x;
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testSample.at<float>(1) = (float)y;
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int response = (int)gbtrees.predict( testSample );
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circle( imgDst, Point(x,y), 2, classColors[response], 1 );
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}
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}
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}
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#endif
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#if _RF_
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void find_decision_boundary_RF()
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{
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img.copyTo( imgDst );
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Mat trainSamples, trainClasses;
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prepare_train_data( trainSamples, trainClasses );
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// learn classifier
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CvRTrees rtrees;
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CvRTParams params( 4, // max_depth,
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2, // min_sample_count,
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0.f, // regression_accuracy,
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false, // use_surrogates,
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16, // max_categories,
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0, // priors,
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false, // calc_var_importance,
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1, // nactive_vars,
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5, // max_num_of_trees_in_the_forest,
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0, // forest_accuracy,
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CV_TERMCRIT_ITER // termcrit_type
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);
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rtrees.train( trainSamples, CV_ROW_SAMPLE, trainClasses, Mat(), Mat(), Mat(), Mat(), params );
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Mat testSample(1, 2, CV_32FC1 );
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for( int y = 0; y < img.rows; y += testStep )
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{
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for( int x = 0; x < img.cols; x += testStep )
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{
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testSample.at<float>(0) = (float)x;
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testSample.at<float>(1) = (float)y;
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int response = (int)rtrees.predict( testSample );
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circle( imgDst, Point(x,y), 2, classColors[response], 1 );
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}
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}
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}
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#endif
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#if _ERT_
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void find_decision_boundary_ERT()
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{
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img.copyTo( imgDst );
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Mat trainSamples, trainClasses;
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prepare_train_data( trainSamples, trainClasses );
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// learn classifier
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CvERTrees ertrees;
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Mat var_types( 1, trainSamples.cols + 1, CV_8UC1, Scalar(CV_VAR_ORDERED) );
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var_types.at<uchar>( trainSamples.cols ) = CV_VAR_CATEGORICAL;
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CvRTParams params( 4, // max_depth,
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2, // min_sample_count,
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0.f, // regression_accuracy,
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false, // use_surrogates,
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16, // max_categories,
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0, // priors,
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false, // calc_var_importance,
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1, // nactive_vars,
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5, // max_num_of_trees_in_the_forest,
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0, // forest_accuracy,
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CV_TERMCRIT_ITER // termcrit_type
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);
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ertrees.train( trainSamples, CV_ROW_SAMPLE, trainClasses, Mat(), Mat(), var_types, Mat(), params );
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Mat testSample(1, 2, CV_32FC1 );
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for( int y = 0; y < img.rows; y += testStep )
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{
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for( int x = 0; x < img.cols; x += testStep )
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{
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testSample.at<float>(0) = (float)x;
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testSample.at<float>(1) = (float)y;
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int response = (int)ertrees.predict( testSample );
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circle( imgDst, Point(x,y), 2, classColors[response], 1 );
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}
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}
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}
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#endif
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#if _ANN_
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void find_decision_boundary_ANN( const Mat& layer_sizes )
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{
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img.copyTo( imgDst );
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Mat trainSamples, trainClasses;
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prepare_train_data( trainSamples, trainClasses );
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// prerare trainClasses
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trainClasses.create( trainedPoints.size(), classColors.size(), CV_32FC1 );
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for( int i = 0; i < trainClasses.rows; i++ )
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{
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for( int k = 0; k < trainClasses.cols; k++ )
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{
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if( k == trainedPointsMarkers[i] )
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trainClasses.at<float>(i,k) = 1;
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else
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trainClasses.at<float>(i,k) = 0;
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}
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}
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Mat weights( 1, trainedPoints.size(), CV_32FC1, Scalar::all(1) );
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// learn classifier
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CvANN_MLP ann( layer_sizes, CvANN_MLP::SIGMOID_SYM, 1, 1 );
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ann.train( trainSamples, trainClasses, weights );
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Mat testSample( 1, 2, CV_32FC1 );
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for( int y = 0; y < img.rows; y += testStep )
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{
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for( int x = 0; x < img.cols; x += testStep )
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{
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testSample.at<float>(0) = (float)x;
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testSample.at<float>(1) = (float)y;
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Mat outputs( 1, classColors.size(), CV_32FC1, testSample.data );
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ann.predict( testSample, outputs );
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Point maxLoc;
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minMaxLoc( outputs, 0, 0, 0, &maxLoc );
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circle( imgDst, Point(x,y), 2, classColors[maxLoc.x], 1 );
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}
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}
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}
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#endif
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#if _EM_
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void find_decision_boundary_EM()
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{
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img.copyTo( imgDst );
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Mat trainSamples, trainClasses;
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prepare_train_data( trainSamples, trainClasses );
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vector<cv::EM> em_models(classColors.size());
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CV_Assert((int)trainClasses.total() == trainSamples.rows);
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CV_Assert((int)trainClasses.type() == CV_32SC1);
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for(size_t modelIndex = 0; modelIndex < em_models.size(); modelIndex++)
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{
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const int componentCount = 3;
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em_models[modelIndex] = EM(componentCount, cv::EM::COV_MAT_DIAGONAL);
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Mat modelSamples;
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for(int sampleIndex = 0; sampleIndex < trainSamples.rows; sampleIndex++)
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{
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if(trainClasses.at<int>(sampleIndex) == (int)modelIndex)
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modelSamples.push_back(trainSamples.row(sampleIndex));
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}
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// learn models
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if(!modelSamples.empty())
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em_models[modelIndex].train(modelSamples);
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}
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// classify coordinate plane points using the bayes classifier, i.e.
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// y(x) = arg max_i=1_modelsCount likelihoods_i(x)
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Mat testSample(1, 2, CV_32FC1 );
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for( int y = 0; y < img.rows; y += testStep )
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{
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for( int x = 0; x < img.cols; x += testStep )
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{
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testSample.at<float>(0) = (float)x;
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testSample.at<float>(1) = (float)y;
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Mat logLikelihoods(1, em_models.size(), CV_64FC1, Scalar(-DBL_MAX));
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for(size_t modelIndex = 0; modelIndex < em_models.size(); modelIndex++)
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{
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if(em_models[modelIndex].isTrained())
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logLikelihoods.at<double>(modelIndex) = em_models[modelIndex].predict(testSample)[0];
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}
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Point maxLoc;
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minMaxLoc(logLikelihoods, 0, 0, 0, &maxLoc);
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int response = maxLoc.x;
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circle( imgDst, Point(x,y), 2, classColors[response], 1 );
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}
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}
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}
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#endif
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int main()
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{
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cout << "Use:" << endl
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<< " right mouse button - to add new class;" << endl
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<< " left mouse button - to add new point;" << endl
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<< " key 'r' - to run the ML model;" << endl
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<< " key 'i' - to init (clear) the data." << endl << endl;
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cv::namedWindow( "points", 1 );
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img.create( 480, 640, CV_8UC3 );
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imgDst.create( 480, 640, CV_8UC3 );
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imshow( "points", img );
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setMouseCallback( "points", on_mouse );
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for(;;)
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{
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uchar key = (uchar)waitKey();
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if( key == 27 ) break;
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if( key == 'i' ) // init
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{
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img = Scalar::all(0);
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classColors.clear();
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trainedPoints.clear();
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trainedPointsMarkers.clear();
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imshow( winName, img );
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}
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if( key == 'r' ) // run
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{
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#if _NBC_
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find_decision_boundary_NBC();
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namedWindow( "NormalBayesClassifier", WINDOW_AUTOSIZE );
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imshow( "NormalBayesClassifier", imgDst );
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#endif
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#if _KNN_
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int K = 3;
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find_decision_boundary_KNN( K );
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namedWindow( "kNN", WINDOW_AUTOSIZE );
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imshow( "kNN", imgDst );
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K = 15;
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find_decision_boundary_KNN( K );
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namedWindow( "kNN2", WINDOW_AUTOSIZE );
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imshow( "kNN2", imgDst );
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#endif
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#if _SVM_
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//(1)-(2)separable and not sets
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CvSVMParams params;
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params.svm_type = CvSVM::C_SVC;
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params.kernel_type = CvSVM::POLY; //CvSVM::LINEAR;
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params.degree = 0.5;
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params.gamma = 1;
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params.coef0 = 1;
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params.C = 1;
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params.nu = 0.5;
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params.p = 0;
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params.term_crit = cvTermCriteria(CV_TERMCRIT_ITER, 1000, 0.01);
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find_decision_boundary_SVM( params );
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namedWindow( "classificationSVM1", WINDOW_AUTOSIZE );
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imshow( "classificationSVM1", imgDst );
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params.C = 10;
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find_decision_boundary_SVM( params );
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namedWindow( "classificationSVM2", WINDOW_AUTOSIZE );
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imshow( "classificationSVM2", imgDst );
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#endif
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#if _DT_
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find_decision_boundary_DT();
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namedWindow( "DT", WINDOW_AUTOSIZE );
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imshow( "DT", imgDst );
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#endif
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#if _BT_
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find_decision_boundary_BT();
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namedWindow( "BT", WINDOW_AUTOSIZE );
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imshow( "BT", imgDst);
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#endif
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#if _GBT_
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find_decision_boundary_GBT();
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namedWindow( "GBT", WINDOW_AUTOSIZE );
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imshow( "GBT", imgDst);
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#endif
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#if _RF_
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find_decision_boundary_RF();
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namedWindow( "RF", WINDOW_AUTOSIZE );
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imshow( "RF", imgDst);
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#endif
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#if _ERT_
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find_decision_boundary_ERT();
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namedWindow( "ERT", WINDOW_AUTOSIZE );
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imshow( "ERT", imgDst);
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#endif
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#if _ANN_
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Mat layer_sizes1( 1, 3, CV_32SC1 );
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layer_sizes1.at<int>(0) = 2;
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layer_sizes1.at<int>(1) = 5;
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layer_sizes1.at<int>(2) = classColors.size();
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find_decision_boundary_ANN( layer_sizes1 );
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namedWindow( "ANN", WINDOW_AUTOSIZE );
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imshow( "ANN", imgDst );
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#endif
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#if _EM_
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find_decision_boundary_EM();
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namedWindow( "EM", WINDOW_AUTOSIZE );
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imshow( "EM", imgDst );
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#endif
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}
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}
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return 1;
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}
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