On 8/23/07, Bart Joosen <[EMAIL PROTECTED]> wrote: > Maybe this is more a programming questions than a specific R-project > question, but maybe there is someone who can point me in the right direction. > > I have a picture of cirkels which I took with a digital camera. > Now I want to use the diameter of the cirkels on the picture for analysis in > R. > I can use pixmap to import the picture, but how do I find the outside cirkels > and calculate the diameter? > I pointed out that I can use the edci package, but then I need to preprocess > the data to reduce the points, otherwise it takes a long time, and my > computer crashes. > > If you want to see such a picture, I cropped a larger one, and highlighted > the cirkel which is of interest. > In a real world, this is a plate with 36 cirkels, which all should be > measured. > www.users.skynet.be/fa244930/fotos/outlined.jpg
You mean the diameter measured in number of pixels? Paul ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
