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 ); }