/* * principal component analysis (PCA) * Copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at> * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** * @file * principal component analysis (PCA) */ #ifndef AVUTIL_PCA_H #define AVUTIL_PCA_H struct PCA *ff_pca_init(int n); void ff_pca_free(struct PCA *pca); void ff_pca_add(struct PCA *pca, const double *v); int ff_pca(struct PCA *pca, double *eigenvector, double *eigenvalue); #endif /* AVUTIL_PCA_H */