/usr/include/ph_fft.h is in libphash0-dev 0.9.4-1.2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | /*
pHash, the open source perceptual hash library
Copyright (C) 2009 Aetilius, Inc.
All rights reserved.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Evan Klinger - eklinger@phash.org
D Grant Starkweather - dstarkweather@phash.org
*/
#ifndef _FFT_H
#define _FFT_H
#define PI 3.1415926535897932
#include <math.h>
#include </usr/include/complex.h>
#include <stdlib.h>
int fft(double *x, int N, complex double *X);
#endif
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