image_antsmath

Wrapper for ANTs ImageMath. ANTs ImageMath provides many operations; this module currently implements a subset. Additional operations can be added as
needed. Currently supported:
- MajorityVoting: label fusion selecting the most frequent label at each voxel.
- m: voxel-wise multiplication of two or more images.

Keywords : segmentation, label fusion, majority voting, multi-atlas, multiplication

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Inputs

Input 1

Format : tuple val(meta), path(input)

	Type	Description	Mandatory	Pattern
meta	map	Groovy Map containing sample information e.g. [ id:'test', single_end:false ]	True
input	file	One or more NIfTI volumes to pass to the selected ImageMath operation. The number of images required depends on the operation (e.g., MajorityVoting needs 2+, m needs 2+).	True	*.{nii,nii.gz}

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Outputs

image

Format : tuple val(meta), path(*.nii.gz)

	Type	Description	Mandatory	Pattern
meta	map	Groovy Map containing sample information e.g. [ id:'test', single_end:false ]	True
*.nii.gz	file	Output image from the selected ImageMath operation.	True	*_{operation}.nii.gz

versions

Format : path(versions.yml)

	Type	Description	Mandatory	Pattern
versions.yml	file	File containing software versions	True	versions.yml

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Arguments (see process.ext)

	Type	Description	Default	Choices
operation	string	ImageMath operation to perform. Must be one of: MajorityVoting, m.	“	- MajorityVoting - m
suffix	string	Suffix for the output filename. Defaults to the operation name.	None
single_thread	boolean	Force single-threaded execution.	False

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Tools

	Description	DOI
ANTs	Advanced Normalization Tools.	10.1038/s41598-021-87564-6

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Authors

• @CMonnin

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Last updated : 2026-05-12