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libavutil/pca.h

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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 */

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