MorphologicalGradient¶

MacroModule¶

genre	`Filters`
author	`MeVis Medical Solutions AG`
package	`MeVisLab/Standard`
definition	Filters.def
see also	`Morphology`
keywords	`morphology`, `dilation`, `erosion`, `erode`, `dilate`, `edge`

Purpose¶

The module MorphologicalGradient is a simple edge detection filter based on a combination of a dilation and an erosion of the input image.

Windows¶

Default Panel¶

../../../Modules/Macros/Filters/mhelp/Images/Screenshots/MorphologicalGradient._default.png

Input Fields¶

imageIn¶

name: imageIn, type: Image¶

Output Fields¶

imageOut¶

name: imageOut, type: Image¶

Parameter Fields¶

Field Index¶

Dilation Size: Integer

Erosion Size: Integer

Gradient Type: Enum

Use 3D: Bool

Use spherical kernel: Bool

Visible Fields¶

Dilation Size¶

name: dilationSize, type: Integer, default: 3, minimum: 1¶: Sets the size of the dilation kernel.

Erosion Size¶

name: erosionSize, type: Integer, default: 3, minimum: 1¶: Sets the size of the erosion kernel.

Use spherical kernel¶

name: sphericalKernel, type: Bool, default: FALSE¶: If checked, a spherical kernel is used instead of a square kernel.

Use 3D¶

name: threeDimensional, type: Bool, default: FALSE¶: If checked, the module uses a 3D kernel instead of a 2D kernel.

Gradient Type¶

name: gradientType, type: Enum, default: Central¶

Defines the order in which dilation and erosion are performed.

The following symbols are used:

Symbol	Meaning
I	Image
⊕	Dilation
⊖	Erosion
B	Structuring Element (Kernel)

Values:

Title	Name	Description
Central	Central	(I ⊕ B) - (I ⊖ B) \|
Outer	Outer	(I ⊕ B) - ((I ⊕ B) ⊖ B) \|
Inner	Inner	((I ⊖ B) ⊕ B) - (I ⊖ B) \|