00001 /* 00002 * principal component analysis (PCA) 00003 * Copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at> 00004 * 00005 * This file is part of FFmpeg. 00006 * 00007 * FFmpeg is free software; you can redistribute it and/or 00008 * modify it under the terms of the GNU Lesser General Public 00009 * License as published by the Free Software Foundation; either 00010 * version 2.1 of the License, or (at your option) any later version. 00011 * 00012 * FFmpeg is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00015 * Lesser General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU Lesser General Public 00018 * License along with FFmpeg; if not, write to the Free Software 00019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00020 */ 00021 00027 #ifndef AVUTIL_PCA_H 00028 #define AVUTIL_PCA_H 00029 00030 struct PCA *ff_pca_init(int n); 00031 void ff_pca_free(struct PCA *pca); 00032 void ff_pca_add(struct PCA *pca, double *v); 00033 int ff_pca(struct PCA *pca, double *eigenvector, double *eigenvalue); 00034 00035 #endif /* AVUTIL_PCA_H */