tpwr {wavethresh} | R Documentation |
Performs the inverse transform to tpwd
.
tpwr(tpwdobj, verbose = FALSE)
tpwdobj |
An object which is a list which contains the items
indicated in the return value of |
verbose |
Whether informative messages are printed |
Performs the inverse transform to tpwd
.
A matrix, or image, containing the inverse tensor product wavelet
transform of the image contained in the tpwd
component of the
tpwdobj
object.
G P Nason
data(lennon)
ltpwd <- tpwd(lennon)
#
# now perform the inverse and compare to the original
#
ltpwr <- tpwr(ltpwd)
sum((ltpwr - lennon)^2)
# [1] 9.22802e-10