NIfTI (Neuroimaging Informatics Technology Initiative) Quick Facts

About Quick Facts Tables

Format Type Identifier

NIfTI

Reader/Writer

Both

Dataset Type

  • File

Feature Type

NIfTI file

Typical File Extensions

  • .nii
  • .nii.gz
  • .hdr .img pair
  • .hdr .img.gz pair

Automated Translation Support

No

User-Defined Attributes

Yes, from a fixed set

Coordinate System Support

No

Generic Color Support

No

Spatial Index

No

Schema Required

No

Transaction Support

No

Encoding Support

Yes

Geometry Type Attribute

nifti_type

Geometry Support

Geometry

Supported?

aggregate

no

circles

no

circular arc

no

donut polygon

no

elliptical arc

no

ellipses

no

line

no

none

no

point

no

polygon

no

raster

yes

solid

no

surface

no

text

no

z values

no

Raster Support

Band Interpretations

Int8, UInt8, Int16, UInt16, Int32, UInt32, Int64, UInt64, Real32, Real64, Red8, Green8, Blue8, Alpha8

Palette Key Interpretations

not applicable

Palette Value Interpretations

not applicable

Nodata Value

not applicable

Cell Origin (x, y)

0.5, 0.5

Rotation Support

No

GCP Support

No

World File Support

No

TAB File Support

No