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/* base class for all mosaicing operations
*
*/
/*
Copyright (C) 1991-2005 The National Gallery
This library 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 2.1 of the License, or (at your option) any later version.
This library 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 library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
/*
These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
*/
/*
#define DEBUG
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /*HAVE_CONFIG_H*/
#include <vips/intl.h>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <vips/vips.h>
#include <vips/internal.h>
/**
* SECTION: mosaicing
* @short_description: build image mosaics
* @stability: Stable
* @include: vips/vips.h
*
* These functions are useful for joining many small images together to make
* one large image. They can cope with unstable contrast and arbitary sub-image
* layout, but will not do any geometric correction. Geometric errors should
* be removed before using these functions.
*
* The mosaicing functions can be grouped into layers:
*
* The lowest level functions are im_correl() and vips_merge().
* im_correl()
* searches a large image for a small sub-image, returning
* the position of the best sub-image match. vips_merge()
* joins two images together
* left-right or up-down with a smooth seam.
*
* Next, vips_mosaic() use the
* search function plus the two low-level merge operations to join two images
* given just an approximate overlap as a start point.
*
* The functions im_lrmosaic1() and im_tbmosaic1() are
* first-order
* analogues of the basic mosaic functions: they take two approximate
* tie-points and use
* them to rotate and scale the right-hand or bottom image before starting to
* join.
*
* Finally, vips_globalbalance() can be used to remove contrast differences in
* a mosaic
* which has been assembled with these functions. It takes the mosaic apart,
* measures image contrast differences along the seams, finds a set of
* correction factors which will minimise these differences, and reassembles
* the mosaic.
* im_remosaic() uses the
* same
* techniques, but will reassemble the image from a different set of source
* images.
*
*/
/* Called from iofuncs to init all operations in this dir. Use a plugin system
* instead?
*/
void
vips_mosaicing_operation_init( void )
{
extern int vips_merge_get_type( void );
extern int vips_mosaic_get_type( void );
extern int vips_mosaic1_get_type( void );
extern int vips_match_get_type( void );
extern int vips_globalbalance_get_type( void );
vips_merge_get_type();
vips_mosaic_get_type();
vips_mosaic1_get_type();
vips_match_get_type();
vips_globalbalance_get_type();
}
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