Module: Erosion / Line Erosion ()

Description:

Line Erosion is one of the configurations of the module Erosion. For other configurations, see the port Type and port Interpretation.

For an introduction, see:

• section Morphology
• introduction and definition for erosions

This module performs a 2D erosion using a linear structuring element. The direction of 0 degree is horizontal and to the left, and the angles are calculated counter-clockwise.

Figure 1: An erosion by Line Erosion

Figure 2: Two gray-level erosions

See also: Line Dilation.

Connections:

Input Image [required]
The input image to be processed. Supported types include: binary and label image (Uniform Label Field), grayscale image (Uniform Scalar Field) and color image (Uniform Color Field).

Ports:

Type

This port selects the configuration of this module. The available configurations are:

• Cube Erosion,
• Disk Erosion,
• Line Erosion,
• Ball Erosion,
• Color Erosion.

Interpretation

This port specifies whether the input will be interpreted as a 3D volume or a stack of 2D images for processing.

• "3D": the module configuration is set to 3D. The image will be processed as a whole in 3D.
• "XY planes": the module configuration is set to 2D. The image will be processed slice per slice.

Rotation Angle

This port refers to the direction of the linear structuring element in degrees.

Size

This port refers to the half-kernel size.