libvips/include/vips/mosaic.h
2007-08-29 16:23:50 +00:00

87 lines
2.8 KiB
C

/* @(#) Local definitions used by the mosaicing program
* @(#) If MAXPOINTS change please ensure that it is still a multiple of
* @(#) AREAS or else AREAS must change as well. Initial setup is for
* @(#) MAXPOINTS = 60, AREAS = 3.
* @(#)
* Copyright: 1990, 1991 N. Dessipris
* Author: Nicos Dessipris
* Written on: 07/11/1989
* Modified on : 29/11/1989
*/
/*
This file is part of VIPS.
VIPS is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
*/
#ifndef IM_MOSAIC_H
#define IM_MOSAIC_H
#define MAXPOINTS 60 /* MAXPOINTS % AREAS (in im_calcon) must be zero */
typedef struct {
char *reference; /* filename of reference */
char *secondary; /* filename of secondary */
int deltax; /* initial estimate of displacement */
int deltay; /* initial estimate of displacement */
int nopoints; /* must be multiple of AREAS and <= MAXPOINTS */
int halfcorsize; /* recommended 5 */
int halfareasize; /* recommended 8 */
/* x, y_reference and contrast found by im_calcon()
*/
int x_reference[MAXPOINTS], y_reference[MAXPOINTS];
int contrast[MAXPOINTS];
/* x, y_secondary and correlation set by im_chkpair()
*/
int x_secondary[MAXPOINTS], y_secondary[MAXPOINTS];
/* returns the corrected best correlation
* as detected in 2*halfareasize+1
* centered at point (x2, y2) and using
* correlation area 2*halfareasize+1
*/
double correlation[MAXPOINTS];
/* Coefficients calculated by im_clinear()
*/
double l_scale, l_angle, l_deltax, l_deltay;
/* used by im_clinear()
*/
double dx[MAXPOINTS], dy[MAXPOINTS];
double deviation[MAXPOINTS];
} TIE_POINTS;
int im_clinear( TIE_POINTS *points );
int im__chkpair( IMAGE *, IMAGE *, TIE_POINTS *point );
int im__initialize( TIE_POINTS *points );
int im__improve( TIE_POINTS *inpoints, TIE_POINTS *outpoints );
int im__avgdxdy( TIE_POINTS *points, int *dx, int *dy );
int im__lrcalcon( IMAGE *ref, TIE_POINTS *points );
int im__tbcalcon( IMAGE *ref, TIE_POINTS *points );
#endif /*IM_MOSAIC_H*/