static int
vips_smartcrop_score( VipsSmartcrop *smartcrop, VipsImage *in,
int left, int top, int width, int height, double *score )
{
VipsImage **t = (VipsImage **)
vips_object_local_array( VIPS_OBJECT( smartcrop ), 2 );
if( vips_extract_area( in, &t[0], left, top, width, height, NULL ) ||
vips_hist_find( t[0], &t[1], NULL ) ||
vips_hist_entropy( t[1], score, NULL ) )
return( -1 );
return( 0 );
}
/* Crop down to the final size, if crop_image is set.
*/
static VipsImage *
thumbnail_crop( VipsObject *process, VipsImage *im )
{
VipsImage **t = (VipsImage **) vips_object_local_array( process, 2 );
if( crop_image ) {
int left = (im->Xsize - thumbnail_width) / 2;
int top = (im->Ysize - thumbnail_height) / 2;
if( vips_extract_area( im, &t[0], left, top,
thumbnail_width, thumbnail_height, NULL ) )
return( NULL );
im = t[0];
}
return( im );
}
int
main( int argc, char **argv )
{
VipsImage *global;
VipsImage **t;
if( VIPS_INIT( argv[0] ) )
return( -1 );
global = vips_image_new();
t = (VipsImage **) vips_object_local_array( VIPS_OBJECT( global ), 5 );
VipsInterpolate *interp = vips_interpolate_new( "bilinear" );
if( !(t[0] = vips_image_new_from_file( argv[1],
"access", VIPS_ACCESS_SEQUENTIAL,
NULL )) )
vips_error_exit( NULL );
t[1] = vips_image_new_matrixv( 3, 3,
-1.0, -1.0, -1.0,
-1.0, 16.0, -1.0,
-1.0, -1.0, -1.0 );
vips_image_set_double( t[1], "scale", 8 );
if( vips_extract_area( t[0], &t[2],
100, 100, t[0]->Xsize - 200, t[0]->Ysize - 200, NULL ) ||
vips_similarity( t[2], &t[3],
"scale", 0.9,
"interpolate", interp,
NULL ) ||
vips_conv( t[3], &t[4], t[1], NULL ) ||
vips_image_write_to_file( t[4], argv[2], NULL ) )
vips_error_exit( NULL );
g_object_unref( global );
g_object_unref( interp );
return( 0 );
}
static int
vips_join_build( VipsObject *object )
{
VipsConversion *conversion = VIPS_CONVERSION( object );
VipsJoin *join = (VipsJoin *) object;
int x, y;
VipsImage *t;
if( VIPS_OBJECT_CLASS( vips_join_parent_class )->build( object ) )
return( -1 );
switch( join->direction ) {
case VIPS_DIRECTION_HORIZONTAL:
x = join->in1->Xsize + join->shim;
switch( join->align ) {
case VIPS_ALIGN_LOW:
y = 0;
break;
case VIPS_ALIGN_CENTRE:
y = join->in1->Ysize / 2 - join->in2->Ysize / 2;
break;
case VIPS_ALIGN_HIGH:
y = join->in1->Ysize - join->in2->Ysize;
break;
default:
g_assert( 0 );
/* Keep -Wall happy.
*/
return( 0 );
}
break;
case VIPS_DIRECTION_VERTICAL:
y = join->in1->Ysize + join->shim;
switch( join->align ) {
case VIPS_ALIGN_LOW:
x = 0;
break;
case VIPS_ALIGN_CENTRE:
x = join->in1->Xsize / 2 - join->in2->Xsize / 2;
break;
case VIPS_ALIGN_HIGH:
x = join->in1->Xsize - join->in2->Xsize;
break;
default:
g_assert( 0 );
/* Keep -Wall happy.
*/
return( 0 );
}
break;
default:
g_assert( 0 );
/* Keep -Wall happy.
*/
return( 0 );
}
if( vips_insert( join->in1, join->in2, &t, x, y,
"expand", TRUE,
"background", join->background,
NULL ) )
return( -1 );
if( !join->expand ) {
VipsImage *t2;
int left, top, width, height;
switch( join->direction ) {
case VIPS_DIRECTION_HORIZONTAL:
left = 0;
top = VIPS_MAX( 0, y ) - y;
width = t->Xsize;
height = VIPS_MIN( join->in1->Ysize, join->in2->Ysize );
break;
case VIPS_DIRECTION_VERTICAL:
left = VIPS_MAX( 0, x ) - x;
top = 0;
width = VIPS_MIN( join->in1->Xsize, join->in2->Xsize );
height = t->Ysize;
break;
default:
g_assert( 0 );
/* Keep -Wall happy.
*/
return( 0 );
}
if( vips_extract_area( t, &t2,
left, top, width, height, NULL ) ) {
g_object_unref( t );
return( -1 );
}
g_object_unref( t );
t = t2;
}
if( vips_image_write( t, conversion->out ) ) {
g_object_unref( t );
return( -1 );
}
g_object_unref( t );
return( 0 );
}
