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\arguments{
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\arguments{
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  \item{h,s,v}{numeric vectors of values in the range \code{[0,1]} for
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  \item{h,s,v}{numeric vectors of values in the range \code{[0,1]} for
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    \dQuote{hue}, \dQuote{saturation} and \dQuote{value} to be combined
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    \dQuote{hue}, \dQuote{saturation} and \dQuote{value} to be combined
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    to form a vector of colors.  Values in shorter arguments are
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    to form a vector of colors.  Values in shorter arguments are
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    recycled.}
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    recycled.}
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  \item{gamma}{a \dQuote{gamma correction}}
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  \item{gamma}{a \dQuote{gamma correction} exponent, \eqn{\gamma}}
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}
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}
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\value{
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\value{
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  This function creates a vector of \dQuote{colors} corresponding to the
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  This function creates a vector of \dQuote{colors} corresponding to the
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  given values in HSV space.  The values returned by \code{hsv} can be
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  given values in HSV space.  The values returned by \code{hsv} can be
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  used with a \code{col=} specification in graphics functions or in
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  used with a \code{col=} specification in graphics functions or in
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  \code{par}.
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  \code{par}.
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}
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}
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\section{Gamma correction}{
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\section{Gamma correction}{
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  For each color, \eqn{(r,g,b)} in RGB space (with all values in \eqn{[0,1]}),
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  For each color, \eqn{(r,g,b)} in RGB space (with all values in \eqn{[0,1]}),
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  the final color corresponds to \eqn{(r^gamma, g^gamma, b^gamma)}.
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  the final color corresponds to \eqn{(r^{\gamma}, g^{\gamma}, b^{\gamma})}.
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}
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}
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\seealso{
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\seealso{
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  \code{\link{rainbow}},
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  \code{\link{rainbow}},
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  \code{\link{rgb}},
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  \code{\link{rgb}},
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  \code{\link{gray}}.
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  \code{\link{gray}}.