thickening_seq — Add the result of a hit-or-miss operation to a region (sequential).
thickening_seq is obsolete and is only provided for
reasons of backward compatibility.
thickening_seq(Region : RegionThick : GolayElement, Iterations : )
thickening_seq calculates the sequential thickening of
the input regions with a structuring element from the Golay alphabet
(GolayElement). To do so, thickening_seq
calls the operator thickening_golay with all possible
rotations of the structuring element Iterations times.
The following structuring elements are available:
'l', 'm', 'd', 'c', 'e', 'i', 'f', 'f2', 'h', 'k'.
The Golay elements, together with all possible rotations, are
described with the operator golay_elements. For all
elements of the Golay alphabet, except for 'c', the foreground and
background masks are exchanged in order to have an effect for them
on the outer boundary of the region. The element 'c' can be used to
generate the convex hull of the input region if enough iterations
are performed.
Region (input_object) region(-array) → object
Regions to be processed.
RegionThick (output_object) region(-array) → object
Result of the thickening operator.
GolayElement (input_control) string → (string)
Structuring element from the Golay alphabet.
Default: 'h'
List of values: 'c', 'd', 'e', 'f', 'f2', 'h', 'i', 'k', 'l', 'm'
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, 70, 100, 200
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:
thickening_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.
reduce_domain,
select_shape,
area_center,
connection
Foundation