channels

Extract one or more channels from an RGB data array that was obtained from
an RGB NIfTI image or created by the <code>rgbArray</code> function. The
result is more amenable to numeric manipulation.

Provides very fast read and write access to images stored in the
NIfTI-1, NIfTI-2 and ANALYZE-7.5 formats, with seamless synchronisation
of in-memory image objects between compiled C and interpreted R code. Also
provides a simple image viewer, and a C/C++ API that can be used by other
packages. Not to be confused with 'RNiftyReg', which performs image
registration and applies spatial transformations.

Jon Clayden

RNifti

Fast R and C++ Access to NIfTI Images

Bob Cox

Mark Jenkinson

Matt Hall

Rick Reynolds

Kate Fissell

Jean-loup Gailly

Mark Adler

channels function

<dl><dt>array</dt>
<dd>An image, an <code>rgbArray</code>, or another array that can be
converted to the latter.</dd>
<dt>channels</dt>
<dd>A character vector of channels to extract.</dd>
<dt>raw</dt>
<dd>Boolean value: if <code>TRUE</code>, return a raw array, which is the
most compact representation; otherwise return an integer array.</dd></dl>

Arguments

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

Author

Extract channels from RGB data — channels

<dl>

<dt>array</dt>
<dd>An image, an <code>rgbArray</code>, or another array that can be
converted to the latter.</dd>


<dt>channels</dt>
<dd>A character vector of channels to extract.</dd>


<dt>raw</dt>
<dd>Boolean value: if <code>TRUE</code>, return a raw array, which is the
most compact representation; otherwise return an integer array.</dd>

</dl>

channels: Extract channels from RGB data

Description

Usage

Value

Arguments

Author