readAffine

This function is used to read a 4x4 numeric matrix representing an affine
transformation from a file. It is a wrapper around <code>read.table</code> which
additionally ensures that required attributes are set. The type of the
matrix must be specified, as there are differing conventions across
software packages.

Provides an 'R' interface to the 'NiftyReg' image registration tools
<https://github.com/KCL-BMEIS/niftyreg>. Linear and nonlinear registration
are supported, in two and three dimensions.

Jon Clayden

RNiftyReg

Image Registration Using the 'NiftyReg' Library

Marc Modat

Benoit Presles

Thanasis Anthopoulos

Pankaj Daga

readAffine function

<dl><dt>fileName</dt>
<dd>A string giving the file name to read the affine matrix
from.</dd>
<dt>source</dt>
<dd>The source image for the transformation. If <code>NULL</code>, the
file will be searched for a comment specifying the path to a NIfTI file.</dd>
<dt>target</dt>
<dd>The target image for the transformation. If <code>NULL</code>, the
file will be searched for a comment specifying the path to a NIfTI file.</dd>
<dt>type</dt>
<dd>The type of the affine matrix, which describes what convention
is it is stored with. Currently valid values are <code>"niftyreg"</code> and
<code>"fsl"</code> (for FSL FLIRT). If <code>NULL</code>, the function will look in
the file for a comment specifying the type.</dd></dl>

Arguments

Jon Clayden &lt;code@clayden.org&gt;

Author

Read an affine matrix from a file — readAffine

<dl>

<dt>fileName</dt>
<dd>A string giving the file name to read the affine matrix
from.</dd>


<dt>source</dt>
<dd>The source image for the transformation. If <code>NULL</code>, the
file will be searched for a comment specifying the path to a NIfTI file.</dd>


<dt>target</dt>
<dd>The target image for the transformation. If <code>NULL</code>, the
file will be searched for a comment specifying the path to a NIfTI file.</dd>


<dt>type</dt>
<dd>The type of the affine matrix, which describes what convention
is it is stored with. Currently valid values are <code>"niftyreg"</code> and
<code>"fsl"</code> (for FSL FLIRT). If <code>NULL</code>, the function will look in
the file for a comment specifying the type.</dd>

</dl>

readAffine: Read an affine matrix from a file

Description

Usage

Value

Arguments

Author

See Also

Examples