| 1 | /* |
| 2 | * principal component analysis (PCA) |
| 3 | * Copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at> |
| 4 | * |
| 5 | * This file is part of FFmpeg. |
| 6 | * |
| 7 | * FFmpeg is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU Lesser General Public |
| 9 | * License as published by the Free Software Foundation; either |
| 10 | * version 2.1 of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * FFmpeg is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * Lesser General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Lesser General Public |
| 18 | * License along with FFmpeg; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 20 | */ |
| 21 | |
| 22 | /** |
| 23 | * @file |
| 24 | * principal component analysis (PCA) |
| 25 | */ |
| 26 | |
| 27 | #ifndef AVUTIL_PCA_H |
| 28 | #define AVUTIL_PCA_H |
| 29 | |
| 30 | struct PCA *ff_pca_init(int n); |
| 31 | void ff_pca_free(struct PCA *pca); |
| 32 | void ff_pca_add(struct PCA *pca, const double *v); |
| 33 | int ff_pca(struct PCA *pca, double *eigenvector, double *eigenvalue); |
| 34 | |
| 35 | #endif /* AVUTIL_PCA_H */ |