NIFTIMetaInfo: Create NIFTI Format Metadata Object

In bbuchsbaum/neuroim2: Data Structures for Brain Imaging Data

Create NIFTI Format Metadata Object

Description

Creates a NIFTIMetaInfo object containing format-specific metadata for NIFTI format neuroimaging files.

Usage

NIFTIMetaInfo(descriptor, nifti_header)

Arguments

descriptor	NIFTIFormat object specifying file format details
nifti_header	List containing NIFTI header information

Details

Create NIFTIMetaInfo Object

The NIFTIMetaInfo object extends MetaInfo with NIFTI-specific features:

• NIFTI header fields (qform, sform matrices)

• Data scaling (slope, intercept)

• File organization (separate vs. single file)

• Orientation information

Validation ensures:

• Valid NIFTI format

• Consistent dimensions

• Valid transformation matrices

• Proper data scaling

Value

A NIFTIMetaInfo object

See Also

MetaInfo

Examples

# Read NIFTI header
header <- read_header(system.file("extdata", "global_mask_v4.nii", package="neuroim2"))

# Create format descriptor
fmt <- new("NIFTIFormat",
           file_format = "NIFTI",
           header_encoding = "raw",
           header_extension = "nii",
           data_encoding = "raw",
           data_extension = "nii")

# Create metadata
meta <- NIFTIMetaInfo(fmt, header@header)

# Check dimensions
dim(meta)

bbuchsbaum/neuroim2 documentation built on Feb. 26, 2025, 3:49 p.m.