erode

Perform morphological $(LINK3 https://en.wikipedia.org/wiki/Erosion_(morphology),erosion).

Use given kernel matrix to estimate image erosion for given image slice. Given slice is considered to be binarized with threshold method.

For given input slice:

1 1 1 1 1 1 1 1 1 1 1 1 1 1
2 1 1 1 1 1 1 0 1 1 1 1 1 1
3 1 1 1 1 1 1 1 1 1 1 1 1 1
4 1 1 1 1 1 1 1 1 1 1 1 1 1
5 1 1 1 1 1 1 1 1 1 1 1 1 1
6 1 1 1 1 1 1 1 1 1 1 1 1 1
7 1 1 1 1 1 1 1 1 1 1 1 1 1
8 1 1 1 1 1 1 1 1 1 1 1 1 1
9 1 1 1 1 1 1 1 1 1 1 1 1 1
10 1 1 1 1 1 1 1 1 1 1 1 1 1
11 1 1 1 1 1 1 1 1 1 1 1 1 1
12 1 1 1 1 1 1 1 1 1 1 1 1 1
13 1 1 1 1 1 1 1 1 1 1 1 1 1

... And erosion kernel of:

1 1 1
1 1 1
1 1 1

... Resulting slice is:

1 0 0 0 0 0 0 0 0 0 0 0 0 0
2 0 1 1 1 1 0 0 0 1 1 1 1 0
3 0 1 1 1 1 0 0 0 1 1 1 1 0
4 0 1 1 1 1 1 1 1 1 1 1 1 0
5 0 1 1 1 1 1 1 1 1 1 1 1 0
6 0 1 1 1 1 1 1 1 1 1 1 1 0
7 0 1 1 1 1 1 1 1 1 1 1 1 0
8 0 1 1 1 1 1 1 1 1 1 1 1 0
9 0 1 1 1 1 1 1 1 1 1 1 1 0
10 0 1 1 1 1 1 1 1 1 1 1 1 0
11 0 1 1 1 1 1 1 1 1 1 1 1 0
12 0 1 1 1 1 1 1 1 1 1 1 1 0
13 0 0 0 0 0 0 0 0 0 0 0 0 0

Note: Erosion works only for 2D binary images.

Slice!(kind, [2], T*)

erode

(

alias BoundaryConditionTest = neumann

SliceKind kind

)

(

Slice!(kind, [2], T*) slice

Slice!(kind, [2], T*) kernel = radialKernel!T(3)

Slice!(kind, [2], T*) prealloc = emptySlice!([2], T)

TaskPool pool = taskPool

)

if (

isBoundaryCondition!BoundaryConditionTest

)

Parameters

slice: Type: Slice!(kind, [2], T*)
Input image slice, to be eroded.
kernel: Type: Slice!(kind, [2], T*)
Erosion kernel. Default value is radialKernel!T(3).
prealloc: Type: Slice!(kind, [2], T*)
Optional pre-allocated buffer to hold result.
pool: Type: TaskPool
Optional TaskPool instance used to parallelize computation.

Return Value

Type: Slice!(kind, [2], T*)

Eroded image slice, of same type as input image.

erode

Parameters

Return Value

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