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redo im_phasecor_fft() a s aclass

This commit is contained in:
John Cupitt 2014-01-07 09:06:02 +00:00
parent 9ac512cfc6
commit f5b0722a13
9 changed files with 183 additions and 77 deletions
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4
ChangeLog
View File

@ -32,8 +32,8 @@
- vipsthumbnail has a --crop option
- remove video4linux1 code, it was useless on all modern linuxes
- redone freq filter builders as classes
- redone im_fwfft(), im_invfft(), im_freqflt(), im_disp_ps(), im_fractsurf()
as classes
- redone im_fwfft(), im_invfft(), im_freqflt(), im_disp_ps(), im_fractsurf(),
im_phasecor() as classes
20/11/13 started 7.36.5
- better cache sizing in unbuffered sequential mode

9
TODO
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@ -1,4 +1,11 @@
- freqfilt almost done
- fix cross-phase
$ vips complex2 x.v x2.v x3.v cross-phase
vips_object_sanity: null object
** VIPS:ERROR:image.c:2473:vips_image_pio_input: assertion failed:
(vips_object_sanity( VIPS_OBJECT( image ) ))
Aborted (core dumped)
- try:

17
libvips/deprecated/vips7compat.c
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@ -4471,3 +4471,20 @@ im_fractsurf( IMAGE *out, int size, double frd )
return( 0 );
}
int
im_phasecor_fft( IMAGE *in1, IMAGE *in2, IMAGE *out )
{
VipsImage *x;
if( vips_phasecor( in1, in2, &x, NULL ) )
return( -1 );
if( im_copy( x, out ) ) {
g_object_unref( x );
return( -1 );
}
g_object_unref( x );
return( 0 );
}

2
libvips/freqfilt/Makefile.am
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@ -7,7 +7,7 @@ libfreqfilt_la_SOURCES = \
invfft.c \
freqmult.c \
spectrum.c \
im_phasecor_fft.c \
phasecor.c \
freq_dispatch.c
AM_CPPFLAGS = -I${top_srcdir}/libvips/include @VIPS_CFLAGS@ @VIPS_INCLUDES@

2
libvips/freqfilt/freqfilt.c
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@ -167,6 +167,7 @@ vips_freqfilt_operation_init( void )
#endif /*HAVE_FFTW*/
extern GType vips_freqmult_get_type( void );
extern GType vips_spectrum_get_type( void );
extern GType vips_phasecor_get_type( void );
#ifdef HAVE_FFTW
vips_fwfft_get_type();
@ -174,5 +175,6 @@ vips_freqfilt_operation_init( void )
#endif /*HAVE_FFTW*/
vips_freqmult_get_type();
vips_spectrum_get_type();
vips_phasecor_get_type();
}

72
libvips/freqfilt/im_phasecor_fft.c
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@ -1,72 +0,0 @@
/* Like im_spcor(), but calculates phase correlation in the Fourier domain.
*
* Copyright: 2008, Nottingham Trent University
*
* Author: Tom Vajzovic
* Written on: 2008-01-16
* 7/2/10
* - cleanups
* - gtkdoc
*/
/*
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., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
/*
These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /*HAVE_CONFIG_H*/
#include <vips/intl.h>
#include <vips/vips.h>
/**
* im_phasecor_fft:
* @in1: first input image
* @in2: second input image
* @out: output image
*
* Convert the two input images to Fourier space, calculate phase-correlation,
* back to real space.
*
* See also: im_fwfft(), im_cross_phase(),
*
* Returns: 0 on success, -1 on error
*/
int
im_phasecor_fft( IMAGE *in1, IMAGE *in2, IMAGE *out )
{
IMAGE *t[3];
if( im_open_local_array( out, t, 3, "im_phasecor_fft", "p" ) ||
im_fwfft( in1, t[0] ) ||
im_fwfft( in2, t[1] ) ||
im_cross_phase( t[0], t[1], t[2] ) ||
im_invfftr( t[2], out ) )
return( -1 );
return( 0 );
}

150
libvips/freqfilt/phasecor.c Normal file
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@ -0,0 +1,150 @@
/* Like spcor, but calculates phase correlation in the Fourier domain.
*
* Copyright: 2008, Nottingham Trent University
*
* Author: Tom Vajzovic
* Written on: 2008-01-16
* 7/2/10
* - cleanups
* - gtkdoc
* 3/1/14
* - redone as a class
*/
/*
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., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
/*
These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /*HAVE_CONFIG_H*/
#include <vips/intl.h>
#include <stdio.h>
#include <stdlib.h>
#include <vips/vips.h>
#include "pfreqfilt.h"
typedef struct _VipsPhasecor {
VipsFreqfilt parent_instance;
VipsImage *in2;
} VipsPhasecor;
typedef VipsFreqfiltClass VipsPhasecorClass;
G_DEFINE_TYPE( VipsPhasecor, vips_phasecor, VIPS_TYPE_FREQFILT );
static int
vips_phasecor_build( VipsObject *object )
{
VipsFreqfilt *freqfilt = VIPS_FREQFILT( object );
VipsPhasecor *phasecor = (VipsPhasecor *) object;
VipsImage **t = (VipsImage **) vips_object_local_array( object, 5 );
VipsImage *in1, *in2;
if( VIPS_OBJECT_CLASS( vips_phasecor_parent_class )->
build( object ) )
return( -1 );
in1 = freqfilt->in;
in2 = phasecor->in2;
if( in1->BandFmt != VIPS_FORMAT_COMPLEX ) {
if( vips_fwfft( in1, &t[0], NULL ) )
return( -1 );
in1 = t[0];
}
if( in2->BandFmt != VIPS_FORMAT_COMPLEX ) {
if( vips_fwfft( in2, &t[1], NULL ) )
return( -1 );
in2 = t[1];
}
if( vips_cross_phase( in1, in2, &t[2], NULL ) ||
vips_invfft( t[2], &t[3], "real", TRUE, NULL ) ||
vips_image_write( t[3], freqfilt->out ) )
return( -1 );
return( 0 );
}
static void
vips_phasecor_class_init( VipsPhasecorClass *class )
{
GObjectClass *gobject_class = G_OBJECT_CLASS( class );
VipsObjectClass *vobject_class = VIPS_OBJECT_CLASS( class );
gobject_class->set_property = vips_object_set_property;
gobject_class->get_property = vips_object_get_property;
vobject_class->nickname = "phasecor";
vobject_class->description = _( "calculate phase correlation" );
vobject_class->build = vips_phasecor_build;
VIPS_ARG_IMAGE( class, "in2", 0,
_( "in2" ),
_( "Second input image" ),
VIPS_ARGUMENT_REQUIRED_INPUT,
G_STRUCT_OFFSET( VipsPhasecor, in2 ) );
}
static void
vips_phasecor_init( VipsPhasecor *phasecor )
{
}
/**
* vips_phasecor:
* @in1: first input image
* @in2: second input image
* @out: output image
* @...: %NULL-terminated list of optional named arguments
*
* Convert the two input images to Fourier space, calculate phase-correlation,
* back to real space.
*
* See also: vips_fwfft(), vips_cross_phase(),
*
* Returns: 0 on success, -1 on error.
*/
int
vips_phasecor( VipsImage *in1, VipsImage *in2, VipsImage **out, ... )
{
va_list ap;
int result;
va_start( ap, out );
result = vips_call_split( "phasecor", ap, in1, in2, out );
va_end( ap );
return( result );
}

3
libvips/include/vips/freqfilt.h
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@ -49,7 +49,8 @@ int vips_freqmult( VipsImage *in, VipsImage *mask, VipsImage **out, ... )
int vips_spectrum( VipsImage *in, VipsImage **out, ... )
__attribute__((sentinel));
int im_phasecor_fft( VipsImage *in1, VipsImage *in2, VipsImage *out );
int vips_phasecor( VipsImage *in1, VipsImage *in2, VipsImage **out, ... )
__attribute__((sentinel));
#ifdef __cplusplus
}

1
libvips/include/vips/vips7compat.h
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@ -973,6 +973,7 @@ int im_invfftr( VipsImage *in, VipsImage *out );
int im_freqflt( VipsImage *in, VipsImage *mask, VipsImage *out );
int im_disp_ps( VipsImage *in, VipsImage *out );
int im_fractsurf( VipsImage *out, int size, double frd );
int im_phasecor_fft( VipsImage *in1, VipsImage *in2, VipsImage *out );
#ifdef __cplusplus
}