76 lines
2.1 KiB
C
76 lines
2.1 KiB
C
|
/* @(#) Multiplies two complex images. complex output is normalised to 1
|
||
|
|
* @(#) Inputs can be complex double or complex float
|
||
|
|
* @(#) Result (double complex or float complex) depends on inputs
|
||
|
|
* @(#) Function im_cmulnorm() assumes that the both input files
|
||
|
|
* @(#) are either memory mapped or in a buffer.
|
||
|
|
* @(#) Images must have the same no of bands and must be complex
|
||
|
|
* @(#) No check for overflow is carried out.
|
||
|
|
* @(#)
|
||
|
|
* @(#) int im_cmulnorm(in1, in2, out)
|
||
|
|
* @(#) IMAGE *in1, *in2, *out;
|
||
|
|
* @(#)
|
||
|
|
* @(#) Returns 0 on success and -1 on error
|
||
|
|
* @(#)
|
||
|
|
*
|
||
|
|
* Copyright: 1990, N. Dessipris.
|
||
|
|
*
|
||
|
|
* Author: Nicos Dessipris
|
||
|
|
* Written on: 02/05/1990
|
||
|
|
* Modified on:
|
||
|
|
* 15/4/97 JC
|
||
|
|
* - thrown away and redone in terms of im_multiply()
|
||
|
|
* 9/7/02 JC
|
||
|
|
* - im_sign() broken out, done in terms of that
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
|
||
|
|
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
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifdef HAVE_CONFIG_H
|
||
|
|
#include <config.h>
|
||
|
|
#endif /*HAVE_CONFIG_H*/
|
||
|
|
#include <vips/intl.h>
|
||
|
|
|
||
|
|
#include <vips/vips.h>
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
|
||
|
|
#ifdef WITH_DMALLOC
|
||
|
|
#include <dmalloc.h>
|
||
|
|
#endif /*WITH_DMALLOC*/
|
||
|
|
|
||
|
|
int
|
||
|
|
im_cmulnorm( IMAGE *in1, IMAGE *in2, IMAGE *out )
|
||
|
|
{
|
||
|
|
IMAGE *t1 = im_open_local( out, "im_cmulnorm:1", "p" );
|
||
|
|
|
||
|
|
if( !t1 || im_multiply( in1, in2, t1 ) || im_sign( t1, out ) )
|
||
|
|
return( -1 );
|
||
|
|
|
||
|
|
return( 0 );
|
||
|
|
}
|