ZeroCrossings¶

MLModule¶

genre	`Filters`
author	`MeVis Medical Solutions AG`
package	`MeVisLab/Standard`
dll	`MLKernel`
definition	MLKernel.def
see also	`Convolution`, `KernelEditor`
keywords	`kernel`, `filter`, `binary`

Purpose¶

The module ZeroCrossings detects zero-crossings in a given input image.

The output value of a voxel is 1 if there is a zero-crossing in the input image in this voxel, i.e., there is another input voxel in the neighborhood defined by the kernel, which as a different signed value and the value of the contemplated voxel is nearer to zero.

The influence of certain objects to the filtering itself can be avoided by excluding the corresponding voxels from the kernel.

Windows¶

Default Panel¶

../../../Modules/ML/MLKernel/mhelp/Images/Screenshots/ZeroCrossings._default.png

Input Fields¶

input0¶

name: input0, type: Image¶

Output Fields¶

output0¶

name: output0, type: Image¶

Parameter Fields¶

Field Index¶

`Border Handling`: `Enum`	`Min (intervalMinOfFilteredVoxels)`: `Double`	`X`: `Integer`
`C`: `Integer`	`Min (intervalMinOfVoxelsForFiltering)`: `Double`	`Y`: `Integer`
`External Kernel`: `String`	`referenceExtentMode`: `Enum`	`Z`: `Integer`
`Fill Value`: `Double`	`T`: `Integer`
`Info`: `String`	`U`: `Integer`
`Make kernel spherical`: `Bool`	`Use (useIntervalOfFilteredVoxels)`: `Bool`
`Max (intervalMaxOfFilteredVoxels)`: `Double`	`Use (useIntervalOfVoxelsForFiltering)`: `Bool`
`Max (intervalMaxOfVoxelsForFiltering)`: `Double`	`Use (useExternalKernel)`: `Bool`

Visible Fields¶

Border Handling¶

name: borderHandling, type: Enum, default: PadSrcClamp, deprecated name: edgeMode¶

Defines the border handling mode.

See Border Handling in Kernel Operations for details.

Values:

Title	Name
No Pad	NoPad
Pad Src Fill	PadSrcFill
Pad Dst Fill	PadDstFill
Pad Dst Fill With Orig	PadDstFillWithOrig
Pad Src Undefined	PadSrcUndefined
Pad Dst Undefined	PadDstUndefined
Pad Src Clamp	PadSrcClamp

Fill Value¶

name: fillValue, type: Double, default: 0¶: Sets the fill value for certain Border Handling modes.

X¶

name: kernelX, type: Integer, default: 3, minimum: 1, maximum: 999¶: Sets the x-extent of the kernel.

Y¶

name: kernelY, type: Integer, default: 3, minimum: 1, maximum: 999¶: Sets the y-extent of the kernel.

Z¶

name: kernelZ, type: Integer, default: 1, minimum: 1, maximum: 999¶: Sets the z-extent of the kernel.

C¶

name: kernelC, type: Integer, default: 1, minimum: 1, maximum: 999¶: Sets the c-extent of the kernel.

T¶

name: kernelT, type: Integer, default: 1, minimum: 1, maximum: 999¶: Sets the t-extent of the kernel.

U¶

name: kernelU, type: Integer, default: 1, minimum: 1, maximum: 999¶: Sets the u-extent of the kernel.

Min (intervalMinOfFilteredVoxels)¶

name: intervalMinOfFilteredVoxels, type: Double, default: 0, deprecated name: ImageIntervalMin¶: Sets the minimum value threshold for outputting a subset of voxels.

Max (intervalMaxOfFilteredVoxels)¶

name: intervalMaxOfFilteredVoxels, type: Double, default: 1024, deprecated name: ImageIntervalMax¶: Sets the maximum value threshold for outputting a subset of voxels.

Use (useIntervalOfFilteredVoxels)¶

name: useIntervalOfFilteredVoxels, type: Bool, default: FALSE, deprecated name: UseImageInterval¶: If checked, the module outputs only on a subset of voxels defined by a value range.

Min (intervalMinOfVoxelsForFiltering)¶

name: intervalMinOfVoxelsForFiltering, type: Double, default: 0, deprecated name: KernelIntervalMin¶: Sets the minimum value threshold for operating on a subset of voxels.

Max (intervalMaxOfVoxelsForFiltering)¶

name: intervalMaxOfVoxelsForFiltering, type: Double, default: 1024, deprecated name: KernelIntervalMax¶: Sets the maximum value threshold for operating on a subset of voxels.

Use (useIntervalOfVoxelsForFiltering)¶

name: useIntervalOfVoxelsForFiltering, type: Bool, default: FALSE, deprecated name: UseKernelInterval¶: If checked, the module operates only on a subset of voxels defined by a value range.

Make kernel spherical¶

name: makeSpherical, type: Bool, default: FALSE¶: If checked, the used kernel is a spherical kernel, not a rectangular one.

External Kernel¶

name: externalKernel, type: String, deprecated name: kernelInput¶

Sets an external kernel as a string.

Use the module KernelEditor for editing the kernel or set the kernel by scripting.

Use (useExternalKernel)¶

name: useExternalKernel, type: Bool, default: FALSE¶: If checked, the optionally attached External Kernel is used.

Info¶

name: kernelInfo, type: String, persistent: no¶: Shows information about the used kernel.

Hidden Fields¶

referenceExtentMode¶

name: referenceExtentMode, type: Enum, default: Overlap¶