deprecate im_hsp()
This commit is contained in:
John Cupitt
parent
81ee98fca7
commit
1c54970deb
@ -10,6 +10,7 @@
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- used freeze() / thaw() to stop file format sniffers logging spurious errors
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- vipsthumbnail uses embedded jpg thumbnails if it can
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- rename vips_diag() as vips_info(), add --vips-info flag
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- deprecate im_hsp()
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3/7/13 started 7.34.2
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- lower priority for Matlab load to reduce segvs from Mat_Open(), thanks
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@ -3456,6 +3456,21 @@ im_hist_indexed( VipsImage *index, VipsImage *value, VipsImage *out )
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return( 0 );
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}
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int
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im_hsp( IMAGE *in, IMAGE *ref, IMAGE *out )
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{
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IMAGE *t[3];
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if( im_open_local_array( out, t, 3, "im_hsp", "p" ) ||
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im_histgr( in, t[0], -1 ) ||
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im_histgr( ref, t[1], -1 ) ||
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im_histspec( t[0], t[1], t[2] ) ||
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im_maplut( in, out, t[2] ) )
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return( -1 );
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return( 0 );
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}
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int
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im_falsecolour( IMAGE *in, IMAGE *out )
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{
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@ -13,7 +13,6 @@ libhistogram_la_SOURCES = \
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\
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hist_dispatch.c \
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im_histspec.c \
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im_hsp.c \
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im_mpercent.c \
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im_invertlut.c \
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im_lhisteq.c \
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211
libvips/histogram/hist_spec.c
Normal file
211
libvips/histogram/hist_spec.c
Normal file
@ -0,0 +1,211 @@
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/* match PDFs
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*
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* Copyright: 1991, N. Dessipris.
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*
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* Author: Nicos Dessipris
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* Written on: 19/07/1990
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* Modified on: 26/03/1991
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*
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* 1/3/01 JC
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* - bleurg! rewritten, now does 16 bits as well, bugs removed, faster,
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* smaller
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* 24/3/10
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* - gtkdoc
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* - small cleanups
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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., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 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 <stdio.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <vips/vips.h>
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/*
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#define DEBUG
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*/
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/*
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#define PIM_RINT
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*/
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/* Match two normalised cumulative histograms.
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*/
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static int
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match( IMAGE *in, IMAGE *ref, IMAGE *out )
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{
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const guint64 inpx = VIPS_IMAGE_N_PELS( in );
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const guint64 refpx = VIPS_IMAGE_N_PELS( ref );
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const int bands = in->Bands;
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unsigned int *inbuf; /* in and ref, padded to same size */
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unsigned int *refbuf;
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unsigned int *outbuf; /* Always output as uint */
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guint64 px; /* Number of pixels */
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guint64 max; /* px * bands */
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guint64 i, j;
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if( im_iocheck( in, out ) ||
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im_iocheck( ref, out ) ||
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im_check_uncoded( "im_histspec", in ) ||
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im_check_format( "im_histspec", in, IM_BANDFMT_UINT ) ||
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im_check_coding_same( "im_histspec", in, ref ) ||
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im_check_format_same( "im_histspec", in, ref ) ||
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im_check_bands_same( "im_histspec", in, ref ) ||
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im_check_hist( "im_histspec", in ) ||
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im_check_hist( "im_histspec", ref ) )
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return( -1 );
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/* How big?
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*/
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if( inpx <= 256 && refpx <= 256 )
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px = 256;
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else if( inpx <= 65536 && refpx <= 65536 )
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px = 65536;
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else
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px = IM_MAX( inpx, refpx );
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max = px * bands;
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/* Unpack to equal-sized buffers.
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*/
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inbuf = IM_ARRAY( out, max, unsigned int );
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refbuf = IM_ARRAY( out, max, unsigned int );
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outbuf = IM_ARRAY( out, max, unsigned int );
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if( !inbuf || !refbuf || !outbuf )
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return( -1 );
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for( i = 0; i < inpx * bands; i++ )
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inbuf[i] = ((unsigned int *)in->data)[i];
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for( ; i < max; i++ )
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inbuf[i] = 0;
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for( i = 0; i < refpx * bands; i++ )
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refbuf[i] = ((unsigned int *)ref->data)[i];
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for( ; i < max; i++ )
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refbuf[i] = 0;
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for( j = 0; j < bands; j++ ) {
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/* Track up refbuf[] with this.
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*/
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int ri = j;
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int limit = max - bands;
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for( i = j; i < max; i += bands ) {
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unsigned int inv = inbuf[i];
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for( ; ri < limit; ri += bands )
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if( inv <= refbuf[ri] )
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break;
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if( ri < limit ) {
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/* Simple rounding.
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*/
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double mid = refbuf[ri] +
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refbuf[ri + bands] / 2.0;
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if( inv < mid )
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outbuf[i] = ri/bands;
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else
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outbuf[i] = ri/bands + 1;
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}
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else
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outbuf[i] = refbuf[ri];
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}
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}
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if( im_cp_descv( out, in, ref, NULL ) )
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return( -1 );
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out->Xsize = px;
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out->Ysize = 1;
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out->Type = IM_TYPE_HISTOGRAM;
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if( im_setupout( out ) )
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return( -1 );
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if( im_writeline( 0, out, (VipsPel *) outbuf ) )
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return( -1 );
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return( 0 );
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}
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/**
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* im_histspec:
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* @in: input histogram
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* @ref: reference histogram
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* @out: output histogram
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*
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* Creates a lut which, when applied to the image from which histogram @in was
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* formed, will produce an image whose PDF matches that of the image from
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* which @ref was formed.
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*
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* See also: im_hsp(), im_histgr(), im_maplut().
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*
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* Returns: 0 on success, -1 on error
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*/
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int
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im_histspec( IMAGE *in, IMAGE *ref, IMAGE *out )
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{
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IMAGE *t[5];
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guint64 px;
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int fmt;
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if( im_check_uint( "im_histspec", in ) ||
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im_check_uint( "im_histspec", ref ) )
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return( -1 );
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/* Match hists.
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*/
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if( im_open_local_array( out, t, 5, "im_histspec", "p" ) ||
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im_histeq( in, t[0] ) ||
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im_clip2fmt( t[0], t[1], IM_BANDFMT_UINT ) ||
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im_histeq( ref, t[2] ) ||
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im_clip2fmt( t[2], t[3], IM_BANDFMT_UINT ) ||
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match( t[1], t[3], t[4] ) )
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return( -1 );
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/* Clip type down.
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*/
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px = VIPS_IMAGE_N_PELS( t[4] );
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if( px <= 256 )
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fmt = IM_BANDFMT_UCHAR;
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else if( px <= 65536 )
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fmt = IM_BANDFMT_USHORT;
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else
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fmt = IM_BANDFMT_UINT;
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if( im_clip2fmt( t[4], out, fmt ) )
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return( -1 );
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return( 0 );
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}
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@ -1,78 +0,0 @@
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/* match histograms
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*
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* Copyright: 1990, N. Dessipris.
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*
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* Author: Nicos Dessipris
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* Written on: 08/05/1990
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* Modified on :
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* 16/6/93 J.Cupitt
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* - im_ioflag() call changed to im_iocheck()
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* 25/5/95 JC
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* - revised
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* 24/3/10
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* - gtkdoc
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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., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 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 <stdio.h>
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#include <vips/vips.h>
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/**
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* im_hsp:
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* @in: input image
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* @ref: reference histogram
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* @out: output image
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*
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* Maps image @in to image @out, adjusting the histogram to match image @ref.
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* Both images should have the same number of bands.
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*
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* See also: im_histspec(), im_histgr().
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*
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* Returns: 0 on success, -1 on error
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*/
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int
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im_hsp( IMAGE *in, IMAGE *ref, IMAGE *out )
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{
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IMAGE *t[3];
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if( im_open_local_array( out, t, 3, "im_hsp", "p" ) ||
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im_histgr( in, t[0], -1 ) ||
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im_histgr( ref, t[1], -1 ) ||
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im_histspec( t[0], t[1], t[2] ) ||
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im_maplut( in, out, t[2] ) )
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return( -1 );
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return( 0 );
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}
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@ -56,7 +56,6 @@ int im_project( VipsImage *in, VipsImage *hout, VipsImage *vout );
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int im_histspec( VipsImage *in, VipsImage *ref, VipsImage *out );
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int im_ismonotonic( VipsImage *lut, int *out );
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int im_hsp( VipsImage *in, VipsImage *ref, VipsImage *out );
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int im_mpercent( VipsImage *in, double percent, int *out );
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int im_mpercent_hist( VipsImage *hist, double percent, int *out );
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@ -859,6 +859,7 @@ int im_heq( VipsImage *in, VipsImage *out, int bandno );
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int im_histnD( VipsImage *in, VipsImage *out, int bins );
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int im_hist_indexed( VipsImage *index, VipsImage *value, VipsImage *out );
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int im_histplot( VipsImage *in, VipsImage *out );
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int im_hsp( VipsImage *in, VipsImage *ref, VipsImage *out );
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/* ruby-vips uses this
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*/
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