78 lines
2.1 KiB
C
78 lines
2.1 KiB
C
/* @(#) Maps imagein to imageout with histogram specified by imageref
|
|
* @(#) Both images should have the same number of bands
|
|
* @(#) Each band of the output image is specified according to the distribution
|
|
* @(#) of grey levels of the reference image
|
|
* @(#)
|
|
* @(#) Usage:
|
|
* @(#) int im_hsp(in, ref, out)
|
|
* @(#) IMAGE *in, *ref, *out;
|
|
* @(#)
|
|
* @(#) Return 0 on success and -1 on error
|
|
*
|
|
* Copyright: 1990, N. Dessipris.
|
|
*
|
|
* Author: Nicos Dessipris
|
|
* Written on: 08/05/1990
|
|
* Modified on :
|
|
* 16/6/93 J.Cupitt
|
|
* - im_ioflag() call changed to im_iocheck()
|
|
* 25/5/95 JC
|
|
* - revised
|
|
*/
|
|
|
|
/*
|
|
|
|
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 <stdio.h>
|
|
|
|
#include <vips/vips.h>
|
|
|
|
#ifdef WITH_DMALLOC
|
|
#include <dmalloc.h>
|
|
#endif /*WITH_DMALLOC*/
|
|
|
|
int
|
|
im_hsp( IMAGE *in, IMAGE *ref, IMAGE *out )
|
|
{
|
|
IMAGE *histin = im_open_local( out, "im_hsp:#1", "p" );
|
|
IMAGE *histref = im_open_local( out, "im_hsp:#2", "p" );
|
|
IMAGE *lut = im_open_local( out, "im_hsp:#3", "p" );
|
|
|
|
if( !histin || !histref || !lut ||
|
|
im_histgr( in, histin, -1 ) ||
|
|
im_histgr( ref, histref, -1 ) ||
|
|
im_histspec( histin, histref, lut ) ||
|
|
im_maplut( in, out, lut ) )
|
|
return( -1 );
|
|
|
|
return( 0 );
|
|
}
|