AFNI 3D Zero Padding (3dZeropad)¶

Library: AFNI | Docker Image: brainlife/afni

Function¶

Adds zero-valued slices around dataset boundaries to extend the image matrix.

Modality: 3D or 4D NIfTI/AFNI volume.

Typical Use: Matching matrix sizes between datasets, preventing edge effects.

-I/-S/-A/-P/-R/-L (add slices in each direction), -master (match grid of master dataset), -prefix (output)

Use -master to match another dataset grid. Can also crop with negative values.

Name	Type	Required	Label	Flag
`input`	`File`	Yes	Input dataset
`prefix`	`string`	Yes	Output dataset prefix	`-prefix`
`I`	`int`	No	Add n planes at Inferior edge	`-I`
`S`	`int`	No	Add n planes at Superior edge	`-S`
`A`	`int`	No	Add n planes at Anterior edge	`-A`
`P`	`int`	No	Add n planes at Posterior edge	`-P`
`L`	`int`	No	Add n planes at Left edge	`-L`
`R`	`int`	No	Add n planes at Right edge	`-R`
`z`	`int`	No	Add planes on each z-axis face	`-z`
`RL`	`int`	No	Symmetric padding to achieve n slices in R/L	`-RL`
`AP`	`int`	No	Symmetric padding to achieve n slices in A/P	`-AP`
`IS`	`int`	No	Symmetric padding to achieve n slices in I/S	`-IS`
`pad2odds`	`boolean`	No	Add 0 or 1 plane per R/A/S for odd slice counts	`-pad2odds`
`pad2evens`	`boolean`	No	Add 0 or 1 plane per R/A/S for even slice counts	`-pad2evens`
`pad2mult`	`int`	No	Make each axis a multiple of N	`-pad2mult`
`mm`	`boolean`	No	Interpret padding counts as millimeters	`-mm`
`master`	`File`	No	Match volume extents from reference dataset	`-master`

input: .nii, .nii.gz, +orig.HEAD, +orig.BRIK, +tlrc.HEAD, +tlrc.BRIK
master: .nii, .nii.gz, +orig.HEAD, +orig.BRIK, +tlrc.HEAD, +tlrc.BRIK

Name	Type	Glob Pattern
`padded`	`File`	`$(inputs.prefix)+orig.HEAD`, `$(inputs.prefix)+tlrc.HEAD`
`log`	`File`	`$(inputs.prefix).log`

Available versions: latest, 16.3.0