[R] cp2tform equivalent
dwinsemius at comcast.net
Sun Dec 18 15:49:50 CET 2011
On Dec 17, 2011, at 2:40 PM, George Macaulay Shaw wrote:
> I'm a new R user and am looking for an R equivalent to the Matlab
> 'cp2tform' function (see: http://www.mathworks.com/help/toolbox/images/ref/cp2tform.html)
> cp2tform accepts pairs of 2D control points and produces a least-
> squares optimized spatial transformation from one set of points to
> the other. Specifically, I'm looking to produce the coefficients of
> a 3rd order polynomial transformation.
I have not been able to find a package that offers that image
processing method. You are welcome to continue the search.
rseek : www.rseek.org/ is another search facility that some people
like, and there is a search facility at http://tolstoy.newcastle.edu.au/R/
which suffers from generating errors after modifying your searches
after an initial set of results are offered unless you navigate back
to its root. but I find Baron's engine to be my favorite.
> I'm familiar with the mathematics involved, but am very new to R. If
> this functionality isn't implemented in R directly, a brief outline
> of the R functions that I'd use to implement it myself would be
David Winsemius, MD
West Hartford, CT
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