AFNI 3D Dataset Information (3dinfo)¶
Library: AFNI | Docker Image: brainlife/afni
Function¶
Displays header information and metadata from AFNI/NIfTI datasets.
Modality: Any NIfTI or AFNI format dataset.
Typical Use: Quality control, scripting decisions based on data properties.
Key Parameters¶
-n4 (dimensions), -tr (TR), -orient (orientation), -prefix (prefix only), -space (coordinate space)
Key Points¶
Essential for scripting and QC. Use specific flags for machine-readable output.
Inputs¶
| Name | Type | Required | Label | Flag |
|---|---|---|---|---|
input |
File |
Yes | Input dataset | |
verb |
boolean |
No | Output extensive information | -verb |
VERB |
boolean |
No | Additional details including slice timing | -VERB |
short |
boolean |
No | Minimal output (default) | -short |
no_hist |
boolean |
No | Omit history text | -no_hist |
exists |
boolean |
No | Returns 1 if loadable, 0 otherwise | -exists |
id |
boolean |
No | Display idcode string | -id |
prefix |
boolean |
No | Return dataset prefix | -prefix |
prefix_noext |
boolean |
No | Return prefix without extensions | -prefix_noext |
space |
boolean |
No | Show coordinate space | -space |
is_nifti |
boolean |
No | Indicate NIFTI format | -is_nifti |
is_oblique |
boolean |
No | Report obliquity status | -is_oblique |
handedness |
boolean |
No | Return L or R for orientation | -handedness |
ni |
boolean |
No | Voxel count in i dimension | -ni |
nj |
boolean |
No | Voxel count in j dimension | -nj |
nk |
boolean |
No | Voxel count in k dimension | -nk |
nt |
boolean |
No | Number of time points | -nt |
nv |
boolean |
No | Number of sub-bricks | -nv |
nijk |
boolean |
No | Total voxel count | -nijk |
di |
boolean |
No | Signed voxel displacement in i | -di |
dj |
boolean |
No | Signed voxel displacement in j | -dj |
dk |
boolean |
No | Signed voxel displacement in k | -dk |
tr |
boolean |
No | Repetition time in seconds | -tr |
voxvol |
boolean |
No | Voxel volume in cubic mm | -voxvol |
dmin |
boolean |
No | Minimum value | -dmin |
dmax |
boolean |
No | Maximum value | -dmax |
Accepted Input Extensions¶
- input:
.nii,.nii.gz,+orig.HEAD,+orig.BRIK,+tlrc.HEAD,+tlrc.BRIK
Outputs¶
| Name | Type | Glob Pattern |
|---|---|---|
info |
stdout |
|
log |
File |
3dinfo.log |
Output Extensions¶
- info:
.txt
Docker Tags¶
Available versions: latest, 16.3.0
Categories¶
- Utilities > AFNI > Dataset Operations