lqr/lqr_rwindow_pub.h

   1 /* LiquidRescaling Library
   2  * Copyright (C) 2007-2009 Carlo Baldassi (the "Author") <carlobaldassi@gmail.com>.
   3  * All Rights Reserved.
   4  *
   5  * This library implements the algorithm described in the paper
   6  * "Seam Carving for Content-Aware Image Resizing"
   7  * by Shai Avidan and Ariel Shamir
   8  * which can be found at http://www.faculty.idc.ac.il/arik/imret.pdf
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU Lesser General Public License as published by
  12  * the Free Software Foundation; version 3 dated June, 2007.
  13
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU Lesser General Public License for more details.
  18
  19  * You should have received a copy of the GNU Lesser General Public License
  20  * along with this program; if not, see <http://www.gnu.org/licenses/>
  21  */
  22
  23 #ifndef __LQR_READER_WINDOW_PUB_H__
  24 #define __LQR_READER_WINDOW_PUB_H__
  25
  26 #ifndef __LQR_BASE_H__
  27 #error "lqr_base.h must be included prior to lqr_rwindow_pub.h"
  28 #endif /* __LQR_BASE_H__ */
  29
  30 enum _LqrEnergyReaderType {
  31     LQR_ER_BRIGHTNESS,                  /* read brightness */
  32     LQR_ER_LUMA,                        /* read luma */
  33     LQR_ER_RGBA,                        /* read RGBA */
  34     LQR_ER_CUSTOM                       /* read the buffer as-is */
  35 };
  36
  37 typedef enum _LqrEnergyReaderType LqrEnergyReaderType;
  38
  39 struct _LqrReadingWindow;
  40
  41 typedef struct _LqrReadingWindow LqrReadingWindow;
  42
  43 LQR_PUBLIC gdouble lqr_rwindow_read(LqrReadingWindow *rwindow, gint x, gint y, gint channel);
  44
  45 LQR_PUBLIC LqrEnergyReaderType lqr_rwindow_get_read_t(LqrReadingWindow *rwindow);
  46 LQR_PUBLIC gint lqr_rwindow_get_radius(LqrReadingWindow *rwindow);
  47 LQR_PUBLIC gint lqr_rwindow_get_channels(LqrReadingWindow *rwindow);
  48
  49 #endif /* __LQR_READER_WINDOW_PUB_H__ */