/usr/include/gwyddion/libprocess/inttrans.h is in libgwyddion20-dev 2.44-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* @(#) $Id: inttrans.h 16527 2014-09-12 15:57:10Z yeti-dn $
* Copyright (C) 2003 David Necas (Yeti), Petr Klapetek.
* E-mail: yeti@gwyddion.net, klapetek@gwyddion.net.
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GWY_PROCESS_INTTRANS_H__
#define __GWY_PROCESS_INTTRANS_H__
#include <libprocess/datafield.h>
#include <libprocess/cwt.h>
G_BEGIN_DECLS
gint gwy_fft_find_nice_size (gint size);
void gwy_data_line_fft (GwyDataLine *rsrc,
GwyDataLine *isrc,
GwyDataLine *rdest,
GwyDataLine *idest,
GwyWindowingType windowing,
GwyTransformDirection direction,
GwyInterpolationType interpolation,
gboolean preserverms,
gint level);
void gwy_data_line_part_fft (GwyDataLine *rsrc,
GwyDataLine *isrc,
GwyDataLine *rdest,
GwyDataLine *idest,
gint from,
gint len,
GwyWindowingType windowing,
GwyTransformDirection direction,
GwyInterpolationType interpolation,
gboolean preserverms,
gint level);
void gwy_data_line_fft_raw (GwyDataLine *rsrc,
GwyDataLine *isrc,
GwyDataLine *rdest,
GwyDataLine *idest,
GwyTransformDirection direction);
void gwy_data_field_1dfft (GwyDataField *rin,
GwyDataField *iin,
GwyDataField *rout,
GwyDataField *iout,
GwyOrientation orientation,
GwyWindowingType windowing,
GwyTransformDirection direction,
GwyInterpolationType interpolation,
gboolean preserverms,
gint level);
void gwy_data_field_area_1dfft (GwyDataField *rin,
GwyDataField *iin,
GwyDataField *rout,
GwyDataField *iout,
gint col,
gint row,
gint width,
gint height,
GwyOrientation orientation,
GwyWindowingType windowing,
GwyTransformDirection direction,
GwyInterpolationType interpolation,
gboolean preserverms,
gint level);
void gwy_data_field_1dfft_raw (GwyDataField *rin,
GwyDataField *iin,
GwyDataField *rout,
GwyDataField *iout,
GwyOrientation orientation,
GwyTransformDirection direction);
void gwy_data_field_2dfft (GwyDataField *rin,
GwyDataField *iin,
GwyDataField *rout,
GwyDataField *iout,
GwyWindowingType windowing,
GwyTransformDirection direction,
GwyInterpolationType interpolation,
gboolean preserverms,
gint level);
void gwy_data_field_area_2dfft (GwyDataField *rin,
GwyDataField *iin,
GwyDataField *rout,
GwyDataField *iout,
gint col,
gint row,
gint width,
gint height,
GwyWindowingType windowing,
GwyTransformDirection direction,
GwyInterpolationType interpolation,
gboolean preserverms,
gint level);
void gwy_data_field_2dfft_raw (GwyDataField *rin,
GwyDataField *iin,
GwyDataField *rout,
GwyDataField *iout,
GwyTransformDirection direction);
void gwy_data_field_2dfft_humanize (GwyDataField *data_field);
void gwy_data_field_2dfft_dehumanize(GwyDataField *data_field);
void gwy_data_field_fft_postprocess (GwyDataField *data_field,
gboolean humanize);
void gwy_data_field_fft_filter_1d (GwyDataField *data_field,
GwyDataField *result_field,
GwyDataLine *weights,
GwyOrientation orientation,
GwyInterpolationType interpolation);
void gwy_data_field_cwt (GwyDataField *data_field,
GwyInterpolationType interpolation,
gdouble scale,
Gwy2DCWTWaveletType wtype);
G_END_DECLS
#endif /* __GWY_PROCESS_INTTRANS_H__ */
/* vim: set cin et ts=4 sw=4 cino=>1s,e0,n0,f0,{0,}0,^0,\:1s,=0,g1s,h0,t0,+1s,c3,(0,u0 : */
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