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added complex convolution

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This commit is contained in:
John Cupitt 2010-10-01 11:03:11 +00:00
parent 4915fb0a83
commit 3145b7aed5
7 changed files with 37 additions and 33 deletions
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1
ChangeLog
View File

@ -30,6 +30,7 @@
- added im_draw_point(), moved im_plotpoint() to deprecated
- added im_read_point(), now partial, moved im_readpoint() to deprecated
- added im_draw_smudge(), moved im_smudge() / im_smear() to deprecated
- convolution functions support complex images
12/5/10 started 7.22.2
- the conditional image of ifthenelse can be any format, a (!=0) is added if

4
TODO
View File

@ -1,9 +1,5 @@
- check gtk-doc output
- convsep / conv need to be able to do COMPLEX
just double the bands
- maybe im_draw_smudge() is too slow :-( also, we had a sanity failure with
it, argh

5
libvips/convolution/im_compass.c
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@ -40,11 +40,6 @@
#endif /*HAVE_CONFIG_H*/
#include <vips/intl.h>
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <assert.h>
#include <vips/vips.h>
#ifdef WITH_DMALLOC

16
libvips/convolution/im_conv.c
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@ -53,6 +53,8 @@
* - more cleanups
* 23/08/10
* - add a special case for 3x3 masks, about 20% faster
* 1/10/10
* - support complex (just double the bands)
*/
/*
@ -331,7 +333,8 @@ conv_gen( REGION *or, void *vseq, void *a, void *b )
int le = r->left;
int to = r->top;
int bo = IM_RECT_BOTTOM( r );
int sz = IM_REGION_N_ELEMENTS( or );
int sz = IM_REGION_N_ELEMENTS( or ) *
(vips_bandfmt_iscomplex( in->BandFmt ) ? 2 : 1);
int x, y, z, i;
@ -394,10 +397,12 @@ conv_gen( REGION *or, void *vseq, void *a, void *b )
break;
case IM_BANDFMT_FLOAT:
case IM_BANDFMT_COMPLEX:
CONV_FLOAT( float );
break;
case IM_BANDFMT_DOUBLE:
case IM_BANDFMT_DPCOMPLEX:
CONV_FLOAT( double );
break;
@ -497,7 +502,8 @@ conv3x3_gen( REGION *or, void *vseq, void *a, void *b )
int le = r->left;
int to = r->top;
int bo = IM_RECT_BOTTOM( r );
int sz = IM_REGION_N_ELEMENTS( or );
int sz = IM_REGION_N_ELEMENTS( or ) *
(vips_bandfmt_iscomplex( in->BandFmt ) ? 2 : 1);
int bands = in->Bands;
Rect s;
@ -545,10 +551,12 @@ conv3x3_gen( REGION *or, void *vseq, void *a, void *b )
break;
case IM_BANDFMT_FLOAT:
case IM_BANDFMT_COMPLEX:
CONV3x3_FLOAT( float );
break;
case IM_BANDFMT_DOUBLE:
case IM_BANDFMT_DPCOMPLEX:
CONV3x3_FLOAT( double );
break;
@ -570,7 +578,6 @@ im_conv_raw( IMAGE *in, IMAGE *out, INTMASK *mask )
*/
if( im_piocheck( in, out ) ||
im_check_uncoded( "im_conv", in ) ||
im_check_noncomplex( "im_conv", in ) ||
im_check_imask( "im_conv", mask ) )
return( -1 );
if( mask->scale == 0 ) {
@ -617,8 +624,7 @@ im_conv_raw( IMAGE *in, IMAGE *out, INTMASK *mask )
* @mask: convolution mask
*
* Convolve @in with @mask using integer arithmetic. The output image
* always has the same #VipsBandFmt as the input image. Non-complex images
* only.
* always has the same #VipsBandFmt as the input image.
*
* Each output pixel is
* calculated as sigma[i]{pixel[i] * mask[i]} / scale + offset, where scale

16
libvips/convolution/im_conv_f.c
View File

@ -31,11 +31,13 @@
* - add restrict, though it doesn't seem to help gcc
* - add mask-all-zero check
* 13/11/09
* - rename as im_conv_f() to make it easier to vips.c to make the
* - rename as im_conv_f() to make it easier for vips.c to make the
* overloaded version
* 3/2/10
* - gtkdoc
* - more cleanups
* 1/10/10
* - support complex (just double the bands)
*/
/*
@ -72,7 +74,6 @@
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <assert.h>
#include <vips/vips.h>
@ -241,7 +242,8 @@ conv_gen( REGION *or, void *vseq, void *a, void *b )
int le = r->left;
int to = r->top;
int bo = IM_RECT_BOTTOM(r);
int sz = IM_REGION_N_ELEMENTS( or );
int sz = IM_REGION_N_ELEMENTS( or ) *
(vips_bandfmt_iscomplex( in->BandFmt ) ? 2 : 1);
int x, y, z, i;
@ -292,12 +294,14 @@ conv_gen( REGION *or, void *vseq, void *a, void *b )
case IM_BANDFMT_INT:
CONV_FLOAT( signed int, float ); break;
case IM_BANDFMT_FLOAT:
case IM_BANDFMT_COMPLEX:
CONV_FLOAT( float, float ); break;
case IM_BANDFMT_DOUBLE:
case IM_BANDFMT_DPCOMPLEX:
CONV_FLOAT( double, double ); break;
default:
assert( 0 );
g_assert( 0 );
}
}
@ -313,7 +317,6 @@ im_conv_f_raw( IMAGE *in, IMAGE *out, DOUBLEMASK *mask )
*/
if( im_piocheck( in, out ) ||
im_check_uncoded( "im_conv", in ) ||
im_check_noncomplex( "im_conv", in ) ||
im_check_dmask( "im_conv", mask ) )
return( -1 );
if( mask->scale == 0 ) {
@ -360,8 +363,7 @@ im_conv_f_raw( IMAGE *in, IMAGE *out, DOUBLEMASK *mask )
*
* Convolve @in with @mask using floating-point arithmetic. The output image
* is always %IM_BANDFMT_FLOAT unless @in is %IM_BANDFMT_DOUBLE, in which case
* @out is also %IM_BANDFMT_DOUBLE. Non-complex images
* only.
* @out is also %IM_BANDFMT_DOUBLE.
*
* Each output pixel is
* calculated as sigma[i]{pixel[i] * mask[i]} / scale + offset, where scale

14
libvips/convolution/im_convsep.c
View File

@ -21,6 +21,8 @@
* 3/2/10
* - gtkdoc
* - more cleanups
* 1/10/10
* - support complex (just double the bands)
*/
/*
@ -57,7 +59,6 @@
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <assert.h>
#include <vips/vips.h>
@ -311,7 +312,8 @@ conv_gen( REGION *or, void *vseq, void *a, void *b )
int le = r->left;
int to = r->top;
int bo = IM_RECT_BOTTOM(r);
int osz = IM_REGION_N_ELEMENTS( or );
int osz = IM_REGION_N_ELEMENTS( or ) *
(vips_bandfmt_iscomplex( in->BandFmt ) ? 2 : 1);
Rect s;
int lskip;
@ -350,14 +352,16 @@ conv_gen( REGION *or, void *vseq, void *a, void *b )
CONV_INT( signed int, IM_CLIP_NONE( sum, seq ) );
break;
case IM_BANDFMT_FLOAT:
case IM_BANDFMT_COMPLEX:
CONV_FLOAT( float );
break;
case IM_BANDFMT_DOUBLE:
case IM_BANDFMT_DPCOMPLEX:
CONV_FLOAT( double );
break;
default:
assert( 0 );
g_assert( 0 );
}
}
@ -373,7 +377,6 @@ im_convsep_raw( IMAGE *in, IMAGE *out, INTMASK *mask )
*/
if( im_piocheck( in, out ) ||
im_check_uncoded( "im_convsep", in ) ||
im_check_noncomplex( "im_convsep", in ) ||
im_check_imask( "im_convsep", mask ) )
return( -1 );
if( mask->xsize != 1 && mask->ysize != 1 ) {
@ -423,8 +426,7 @@ im_convsep_raw( IMAGE *in, IMAGE *out, INTMASK *mask )
*
* The mask must be 1xn or nx1 elements.
* The output image
* always has the same #VipsBandFmt as the input image. Non-complex images
* only.
* always has the same #VipsBandFmt as the input image.
*
* The image is convolved twice: once with @mask and then again with @mask
* rotated by 90 degrees. This is much faster for certain types of mask

14
libvips/convolution/im_convsep_f.c
View File

@ -14,6 +14,8 @@
* 3/2/10
* - gtkdoc
* - more cleanups
* 1/10/10
* - support complex (just double the bands)
*/
/*
@ -50,7 +52,6 @@
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <assert.h>
#include <vips/vips.h>
@ -223,7 +224,8 @@ conv_gen( REGION *or, void *vseq, void *a, void *b )
int le = r->left;
int to = r->top;
int bo = IM_RECT_BOTTOM(r);
int osz = IM_REGION_N_ELEMENTS( or );
int osz = IM_REGION_N_ELEMENTS( or ) *
(vips_bandfmt_iscomplex( in->BandFmt ) ? 2 : 1);
Rect s;
int lskip;
@ -256,12 +258,14 @@ conv_gen( REGION *or, void *vseq, void *a, void *b )
case IM_BANDFMT_INT:
CONV_FLOAT( signed int, float ); break;
case IM_BANDFMT_FLOAT:
case IM_BANDFMT_COMPLEX:
CONV_FLOAT( float, float ); break;
case IM_BANDFMT_DOUBLE:
case IM_BANDFMT_DPCOMPLEX:
CONV_FLOAT( double, double ); break;
default:
assert( 0 );
g_assert( 0 );
}
}
@ -277,7 +281,6 @@ im_convsep_f_raw( IMAGE *in, IMAGE *out, DOUBLEMASK *mask )
*/
if( im_piocheck( in, out ) ||
im_check_uncoded( "im_convsep_f", in ) ||
im_check_noncomplex( "im_convsep_f", in ) ||
im_check_dmask( "im_convsep_f", mask ) )
return( -1 );
if( mask->xsize != 1 && mask->ysize != 1 ) {
@ -331,8 +334,7 @@ im_convsep_f_raw( IMAGE *in, IMAGE *out, DOUBLEMASK *mask )
* The mask must be 1xn or nx1 elements.
* The output image
* is always %IM_BANDFMT_FLOAT unless @in is %IM_BANDFMT_DOUBLE, in which case
* @out is also %IM_BANDFMT_DOUBLE. Non-complex images
* only.
* @out is also %IM_BANDFMT_DOUBLE.
*
* The image is convolved twice: once with @mask and then again with @mask
* rotated by 90 degrees. This is much faster for certain types of mask