--- /dev/null
+
+///////////////////////////////////////////////////////////////////////////
+// This program is free software: you can redistribute it and/or modify //
+// it under the terms of the version 3 of the GNU General Public License //
+// as published by the Free Software Foundation. //
+// //
+// This program is distributed in the hope that it will be useful, but //
+// WITHOUT ANY WARRANTY; without even the implied warranty of //
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU //
+// General Public License for more details. //
+// //
+// You should have received a copy of the GNU General Public License //
+// along with this program. If not, see <http://www.gnu.org/licenses/>. //
+// //
+// Written by Francois Fleuret, (C) IDIAP //
+// Contact <francois.fleuret@idiap.ch> for comments & bug reports //
+///////////////////////////////////////////////////////////////////////////
+
+#include "classifier.h"
+
+Classifier::~Classifier() { }
+
+void Classifier::extract_pi_feature_family(PiFeatureFamily *full_pi_feature_family,
+ PiFeatureFamily *extracted_pi_feature_family) {
+
+ bool *used_features = new bool[full_pi_feature_family->nb_features()];
+ int *new_feature_indexes = new int[full_pi_feature_family->nb_features()];
+
+ for(int f = 0; f < full_pi_feature_family->nb_features(); f++)
+ used_features[f] = false;
+
+ tag_used_features(used_features);
+
+ extracted_pi_feature_family->extract(full_pi_feature_family,
+ used_features,
+ new_feature_indexes);
+
+ re_index_features(new_feature_indexes);
+
+ delete[] new_feature_indexes;
+ delete[] used_features;
+}