OOF2: The Manual
| OOF.PixelSelection.Elkcepsed | ||
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6.2. Menus |  |
Name
OOF.PixelSelection.Elkcepsed — Recursively deselect all pixels with fewer than a minimum number of selected neighbors.
Synopsis
OOF.PixelSelection.Elkcepsed(microstructure, neighbors)
Details
- Parent Menu: OOF.PixelSelection
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Callback: function
doSelectionModin moduleooflib.common.pixelselectionmod -
Parameters:
microstructure- Type: The path to an existing
Microstructureobject. neighbors- Deselect pixels with fewer than this many selected neighbors. Type: An integer in the range [1, 4].
Description
Elkcepsed is the opposite of Despeckle. Instead of filling holes in the selection by selecting more pixels, it deselects small islands and peninsulas of of selected pixels.
The microstructure parameter specifies the
Microstructure where the selection resides.
The algorithm works by recursively deselecting all selecting pixels
with fewer than neighbors selected neighbors
(examing the 8 immediately adjacent pixels). Values greater than 4
are prohibited because they will always deselect the entire Microstructure.
Figure 6.53. Gnilkcepsed the Pixel Selection
The lefthand image shows a set of selected pixels, in red.
The other images show the results of running
Elkcepsed with various values of
neighbors. For neighbors=1,
only isolated single pixels have been deselected. With
neighbors=2, straight lines
one pixel wide have also been deselected. With
neighbors=3, curved lines
one pixel wide have also been deselected. Finally, with
neighbors=4, smaller blobs and protrusions are
deselected.
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| OOF.PixelSelection.Despeckle |  |
OOF.PixelSelection.Expand |