nrrd.parse.header

Splits the header lines into an NRRD magic line and a named list of typed field
values. Field names are normalized for lookup (see <code>nrrd.field.key</code>), the original
spelling is kept in the result. A field may be written as 'name: value' or as 'name:=value',
the latter meaning that the value is a string, which is how the tools that write custom fields
(e.g. the DWI metadata, or pynrrd) store them. The special 'data file: LIST' mode is handled as
well: the lines that follow it, up to the end of the header, are the names of the data files.

internal

Provides functions to read and write neuroimaging data in various file formats, with a focus on 'FreeSurfer' formats. This includes, but is not limited to, the following file formats: 1) MGH/MGZ/NIFTI format files, which can contain multi-dimensional images or other data. Typically they contain time-series of three-dimensional brain scans acquired by magnetic resonance imaging (MRI). They can also contain vertex-wise measures of surface morphometry data. The MGH format is named after the Massachusetts General Hospital, and the MGZ format is a compressed version of the same format. 2) 'FreeSurfer' morphometry data files in binary 'curv' format. These contain vertex-wise surface measures, i.e., one scalar value for each vertex of a brain surface mesh. These are typically values like the cortical thickness or brain surface area at each vertex. 3) Annotation file format. This contains a brain surface parcellation derived from a cortical atlas. 4) Surface file format. Contains a brain surface mesh, given by a list of vertices and a list of faces.

Tim Schc3<a4>fer

freesurferformats

Read and Write 'FreeSurfer' Neuroimaging File Formats

Tim Schäfer

Van Essen Lab 

Montreal Neurological Institute (MNI) 

nrrd.parse.header function

<dl><dt>lines</dt>
<dd>character vector, the header lines, see <code>nrrd.read.header.lines</code>.</dd>
<dt>filepath</dt>
<dd>character string, path to the file, used in error messages.</dd></dl>

Arguments

Parse the header lines of a NRRD file. — nrrd.parse.header

<dl>

<dt>lines</dt>
<dd>character vector, the header lines, see <code>nrrd.read.header.lines</code>.</dd>


<dt>filepath</dt>
<dd>character string, path to the file, used in error messages.</dd>

</dl>

nrrd.parse.header: Parse the header lines of a NRRD file.

Description

Usage

Value

Arguments