dilation_seq — Dilate a region sequentially.
dilation_seq is obsolete and is only provided for
reasons of backward compatibility.
dilation_seq(Region : RegionDilation : GolayElement, Iterations : )
dilation_seq computes the sequential dilation of the
input region Region with the selected structuring element
GolayElement from the Golay alphabet. This is done by
executing the operator dilation_golay with all rotations
of the structuring element Iterations times. The
following structuring elements can be selected:
'l', 'd', 'c', 'f', 'h', 'k'.
In order to compute the skeleton of a region, usually the elements
'l' and 'm' are used. Only the “foreground elements” (even
rotation numbers) are used. The elements 'i' and 'e' result in
unchanged output regions. The elements 'l', 'm' and 'f2' are
identical for the foreground. The Golay elements, together with all
possible rotations, are described with the operator
golay_elements.
Region (input_object) region(-array) → object
Regions to be dilated.
RegionDilation (output_object) region(-array) → object
Dilated regions.
GolayElement (input_control) string → (string)
Structuring element from the Golay alphabet.
Default: 'h'
List of values: 'c', 'd', 'f', 'h', 'k', 'l'
Iterations (input_control) integer → (integer)
Number of iterations.
Default: 1
Suggested values: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 17, 20, 30, 40, 50
Value range:
1
≤
Iterations
(lin)
Minimum increment: 1
Recommended increment: 1
Let F be the area of an input region. Then the runtime complexity for one region is:
dilation_seq returns 2 (
H_MSG_TRUE)
if all parameters are
correct. The behavior in case of empty or no input region can be
set via:
empty region:
set_system('empty_region_result',<RegionResult>)
Otherwise, an exception is raised.
threshold,
regiongrowing,
connection,
union1,
watersheds,
class_ndim_norm
reduce_domain,
select_shape,
area_center,
connection
dilation1,
dilation2,
dilation_golay
erosion_seq,
hit_or_miss_seq,
thinning_seq
Foundation