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This commit is contained in:
John Cupitt 2017-07-25 19:00:21 +01:00
parent 1e7541bfb8
commit effc1d53d0
1 changed files with 21 additions and 15 deletions
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36
libvips/arithmetic/find_trim.c
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@ -87,11 +87,14 @@ static int
vips_find_trim_build( VipsObject *object )
{
VipsFindTrim *find_trim = (VipsFindTrim *) object;
VipsImage **t = (VipsImage **) vips_object_local_array( object, 2 );
VipsImage **t = (VipsImage **) vips_object_local_array( object, 20 );
int i;
double *ones;
double d;
double left;
double top;
double right;
double bottom;
if( VIPS_OBJECT_CLASS( vips_find_trim_parent_class )->build( object ) )
return( -1 );
@ -132,26 +135,29 @@ vips_find_trim_build( VipsObject *object )
/* t[8] == search column sums in from left.
*/
if( vips_profile( t[5], &t[7], &t[8], NULL ) ||
vips_avg( t[8], &d, NULL ) )
vips_avg( t[8], &left, NULL ) )
return( -1 );
find_trim->left = d;
if( vips_flip( t[5], &t[9], VIPS_DIRECTION_HORIZONTAL, NULL ) ||
vips_profile( t[9], &t[10], &t[11], NULL ) ||
vips_avg( t[11], &d, NULL ) )
vips_avg( t[11], &right, NULL ) )
return( -1 );
find_trim->width = (t[5]->Xsize - d) - find_trim->left;
/* t[8] == search column sums in from left.
*/
if( vips_profile( t[6], &t[12], &t[13], NULL ) ||
vips_avg( t[12], &d, NULL ) )
vips_avg( t[12], &top, NULL ) )
return( -1 );
find_trim->top = d;
if( vips_flip( t[6], &t[14], VIPS_DIRECTION_VERTICAL, NULL ) ||
vips_profile( t[14], &t[15], &t[16], NULL ) ||
vips_avg( t[15], &d, NULL ) )
vips_avg( t[15], &bottom, NULL ) )
return( -1 );
find_trim->height = (t[6]->Ysize - d) - find_trim->left;
g_object_set( find_trim,
"left", (int) left,
"top", (int) top,
"width", (int) ((t[5]->Xsize - right) - left),
"height", (int) ((t[6]->Ysize - bottom) - top),
NULL );
return( 0 );
}
@ -171,7 +177,7 @@ vips_find_trim_class_init( VipsFindTrimClass *class )
object_class->description = _( "search an image for non-edge areas" );
object_class->build = vips_find_trim_build;
operation_class->flags = VIPS_OPERATION_SEQUENTIAL;
//operation_class->flags = VIPS_OPERATION_SEQUENTIAL;
VIPS_ARG_IMAGE( class, "in", 1,
_( "in" ),
@ -191,26 +197,26 @@ vips_find_trim_class_init( VipsFindTrimClass *class )
_( "Left edge of image" ),
VIPS_ARGUMENT_REQUIRED_OUTPUT,
G_STRUCT_OFFSET( VipsFindTrim, left ),
1, VIPS_MAX_COORD, 1 );
0, VIPS_MAX_COORD, 1 );
VIPS_ARG_INT( class, "top", 11,
_( "Top" ),
_( "Top edge of extract area" ),
VIPS_ARGUMENT_OPTIONAL_INPUT,
VIPS_ARGUMENT_REQUIRED_OUTPUT,
G_STRUCT_OFFSET( VipsFindTrim, top ),
0, VIPS_MAX_COORD, 0 );
VIPS_ARG_INT( class, "width", 12,
_( "Width" ),
_( "Width of extract area" ),
VIPS_ARGUMENT_OPTIONAL_INPUT,
VIPS_ARGUMENT_REQUIRED_OUTPUT,
G_STRUCT_OFFSET( VipsFindTrim, width ),
1, VIPS_MAX_COORD, 1 );
VIPS_ARG_INT( class, "height", 13,
_( "Height" ),
_( "Height of extract area" ),
VIPS_ARGUMENT_OPTIONAL_INPUT,
VIPS_ARGUMENT_REQUIRED_OUTPUT,
G_STRUCT_OFFSET( VipsFindTrim, height ),
1, VIPS_MAX_COORD, 1 );