Functions for manipulation and extraction of colors from
channel-based pixmap formats. Methods for generic
addChannels adds the
color channels of a colored pixmap and returns a grey version. Methods
getChannels return numeric matrices or arrays
containing the specified channels.
Object of class
Coefficients for the color channels, a numeric vercot with
as many elements as there are color channels in the pixmap. The
default for RGB is
Character vector naming the color channels that shall be
extracted. The default of
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