dilation_golay — Dilate a region with an element from the Golay alphabet.
dilation_golay is obsolete and is only provided for
reasons of backward compatibility.
dilation_golay(Region : RegionDilation : GolayElement, Iterations, Rotation : )
dilation_golay dilates a region with the selected
element GolayElement from the Golay alphabet. The
following structuring elements are available:
'l', 'm', 'd', 'c', 'e', 'i', 'f', 'f2', 'h', 'k'.
The rotation number Rotation determines which rotation of
the element should be used, and whether the foreground (even) or
background version (odd) of the selected element should be used.
The Golay elements, together with all possible rotations, are
described with the operator golay_elements. The
operator works by shifting the structuring element over the region
to be processed (Region). For all positions of the
structuring element that intersect the region, the corresponding
reference point (relative to the structuring element) is added to
the output region. This means that the union of all translations of
the structuring element within the region is computed.
The parameter Iterations determines the number of
iterations which are to be performed with the structuring element.
The result of iteration n-1 is used as input for iteration n.
Not all values of Rotation are valid for any Golay
element. For some of the values of Rotation, the
resulting regions are identical to the input regions.
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 value: 'h'
List of values: 'c', 'd', 'e', 'f', 'f2', 'h', 'i', 'k', 'l', 'm'
Iterations (input_control) integer → (integer)
Number of iterations.
Default value: 1
Suggested values: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 17, 20, 30, 40, 50
Typical range of values: 1
≤
Iterations
(lin)
Minimum increment: 1
Recommended increment: 1
Rotation (input_control) integer → (integer)
Rotation of the Golay element. Depending on the element, not all rotations are valid.
Default value: 0
List of values: 0, 2, 4, 6, 8, 10, 12, 14, 1, 3, 5, 7, 9, 11, 13, 15
Let F be the area of an input region. Then the runtime complexity for one region is:
dilation_golay returns 2 (H_MSG_TRUE) if all parameters are
correct. The behavior in case of empty or no input region can be
set via:
no region: set_system('no_object_result',<RegionResult>)
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_seq
erosion_golay,
opening_golay,
closing_golay,
hit_or_miss_golay,
thinning_golay,
thickening_golay,
golay_elements
Foundation