64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
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/* Like im_spcor(), but calculates phase correlation in the Fourier domain.
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*
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* Copyright: 2008, Nottingham Trent University
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*
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* Author: Tom Vajzovic
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* Written on: 2008-01-16
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*/
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/*
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This file is part of VIPS.
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VIPS is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif /*HAVE_CONFIG_H*/
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#include <vips/intl.h>
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#include <vips/vips.h>
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#ifdef WITH_DMALLOC
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#include <dmalloc.h>
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#endif /*WITH_DMALLOC*/
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int im_phasecor_fft( IMAGE *in1, IMAGE *in2, IMAGE *out ){
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#define FUNCTION_NAME "im_fft_phasecor"
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IMAGE *temp1= im_open_local( out, FUNCTION_NAME ": temp1", "t" );
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IMAGE *temp2= im_open_local( out, FUNCTION_NAME ": temp2", "t" );
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IMAGE *temp3= im_open_local( out, FUNCTION_NAME ": temp3", "t" );
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if( ! temp1 || ! temp2 || ! temp3 )
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return -1;
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return im_incheck( in1 )
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|| im_incheck( in2 )
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|| im_outcheck( out )
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|| im_fwfft( in1, temp1 )
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|| im_fwfft( in2, temp2 )
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|| im_cross_phase( temp1, temp2, temp3 )
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|| im_invfftr( temp3, out );
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#undef FUNCTION_NAME
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}
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