pca.h 1.2 KB

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  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. * @file
  23. * principal component analysis (PCA)
  24. */
  25. #ifndef AVUTIL_PCA_H
  26. #define AVUTIL_PCA_H
  27. struct PCA *ff_pca_init(int n);
  28. void ff_pca_free(struct PCA *pca);
  29. void ff_pca_add(struct PCA *pca, const double *v);
  30. int ff_pca(struct PCA *pca, double *eigenvector, double *eigenvalue);
  31. #endif /* AVUTIL_PCA_H */