Operator Reference
hamming_change_region (Operator)
hamming_change_region
— Generate a region having a given Hamming distance.
Warning
hamming_change_region
is obsolete and is only provided for
reasons of backward compatibility.
Signature
hamming_change_region(InputRegion : OutputRegion : Width, Height, Distance : )
Description
hamming_change_region
changes the region in the left
upper part of the image given by Width
and
Height
such that the resulting regions have a Hamming
distance of Distance
to the input regions. This is done
by adding or removing Distance
points from the input
region.
Attention
If Width
and Height
are chosen too large the
resulting region requires a lot of memory.
Execution Information
- Multithreading type: reentrant (runs in parallel with non-exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Automatically parallelized on tuple level.
Parameters
InputRegion
(input_object) region(-array) →
object
Region to be modified.
OutputRegion
(output_object) region(-array) →
object
Regions having the required Hamming distance.
Width
(input_control) extent.x →
(integer)
Width of the region to be changed.
Default: 100
Suggested values: 64, 128, 256, 512
Value range:
1
≤
Width
≤
512
(lin)
Minimum increment: 1
Recommended increment: 10
Restriction:
Width > 0
Height
(input_control) extent.y →
(integer)
Height of the region to be changed.
Default: 100
Suggested values: 64, 128, 256, 512
Value range:
1
≤
Height
≤
512
(lin)
Minimum increment: 1
Recommended increment: 10
Restriction:
Height > 0
Distance
(input_control) integer →
(integer)
Hamming distance between the old and new regions.
Default: 1000
Suggested values: 100, 500, 1000, 5000, 10000
Value range:
0
≤
Distance
≤
10000
(lin)
Minimum increment: 1
Recommended increment: 10
Restriction:
Distance >= 0 && Distance < Width * Height
Complexity
Memory requirement of the generated region (worst case):
O(2 * Width
* Height
).
Result
hamming_change_region
returns 2 (
H_MSG_TRUE)
if all parameters are
correct. The behavior in case of empty input (no regions given) can
be set via set_system('no_object_result',<Result>)
.
If necessary, an exception is raised.
Possible Predecessors
connection
,
regiongrowing
,
pouring
,
class_ndim_norm
Possible Successors
See also
Module
Foundation