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Morphological Labeling Operations

StreamableKNIME Image Types and Nodes version 1.8.3.202010230604 by University of Konstanz

Perform morphological operations on labelings.

Options

Connection Type
  • Four-Connected
  • Eight-Connected
  • Structuring Element: Read the structuring element from the optional second in port.
Structuring Element
Column of the structuring element.
Operation
  • Erode: Erode labeled areas.
  • Dilate: Dilate labeled areas.
  • Open: Erode followed by Dilate. Erases tiny labeled spots.
  • Close: Dilate followed by Erode. Erases small holes in labeled components.
Strategy
  • Individual Labeling: Erode/Dilate each label individually. This means, labels may also overlap.
  • Binary: Erode/Dilate each pixel with none/any labeling in the neighborhood. In short: we don't distinguish between the individual labels and treat any labeled pixel as positive.
Dimension Selection
Determines for which dimensions the morphological operations will be applied individually.
Out of Bounds Strategy
The 'OutOfBounds Strategy' is used when an algorithm needs access to pixels which lie outside of an image (for example convolutions). The strategy determines how an image is extended, for examples see Fiji Wiki

Column Selection

Column Creation Mode

Mode how to handle the selected column. The processed column can be added to a new table, appended to the end of the table, or the old column can be replaced by the new result

Column Suffix
A suffix appended to the column name. If "Append" is not selected, it can be left empty.
Column Selection
Selection of the columns to be processed.

Input Ports

Icon
Labelings
Icon
Optional Structuring Elements

Output Ports

Icon
Processed Labelings

Views

Image Viewer
Another, possibly interactive, view on table cells. Displays the selected cells with their associated viewer if it exists. Available views are:
- Image Viewer
-- This viewer renders the selected image-cell.
- Missing Value Viewer
-- An empty viewer that is shown when the input cell has no value to display.
- Histogram Viewer
-- This viewer shows the histogram of the currently selected image.
- BigDataViewer
-- A viewer shown when the user selects an interval of rows and columns in the viewer. This viewer combines all images and labelings in the selected interval to one image by rendering them next to each other. Alternatively, the images and labelings can be layed over each other.
- Labeling View
-- View on a labeling/segmentation
- Combined View
-- A viewer shown when the user selects an interval of rows and columns in the viewer. This viewer combines all images and labelings in the selected interval to one image by rendering them next to each other. Alternatively, the images and labelings can be layed over each other.
- XML
-- XML tree

Best Friends (Incoming)

Best Friends (Outgoing)

Workflows

Installation

To use this node in KNIME, install KNIME Image Processing from the following update site:

KNIME 4.2

A zipped version of the software site can be downloaded here.

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Developers

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