https://github.com/cran/fields
Tip revision: 292e80962d92c497484ad0735f3f13a4b8d3e0ac authored by Doug Nychka on 29 November 2007, 14:39:12 UTC
version 4.1
version 4.1
Tip revision: 292e809
Wimage.info.plot.Rd
\name{Wimage.info.plot}
\alias{Wimage.info.plot}
\title{Plot to check 2-d multiresolution indexing}
\description{
Plots in image format the differnt blocks of coefficents associated
with a 2-d multiresolution. This function can be used to check the
Wtransform indexing
functions and is also an introduction to how the coefficients are
organized.
}
\usage{
Wimage.info.plot(m, n, cut.min)
}
%- maybe also 'usage' for other objects documented here.
\arguments{
\item{m}{Number of rows in image}
\item{n}{Number of columns of image }
\item{cut.min}{Smallest number of smooth basis functions. Coarsest resolution will
have atleast cut.min X cut.min basis functions with support on a regular grid. }
}
\details{
This function was used to check the (compicated) indexing functions work.
But it also might a useful graphics to desribe how the different levels of wavelet
coefficients are pack into the image format.
}
\author{Doug Nychka}
\seealso{
\code{\link{Wtransform.image}},
\code{\link{W.info}},
\code{\link{Wimage.info}},
}
\examples{
#
# 64X 128 image coarsest level has 8X16 smooth basis funcitons.
#
# NOTE as a matrix the image plot is upside down! Rows are along X-axis and
# columns on Y
# e.g. the (1,1) element is the lower left corner.
#
Wimage.info.plot( 64, 128, cut.min=8)
}
\keyword{spatial}% at least one, from doc/KEYWORDS