Søren Hauberg wrote:
>Why do you need this function? My impression has always been that this
>function essentially was useless, though I might have missed something
>obvious...
You may wish to consult the documentation for strel to appreciate its value.
http://www.mathworks.com/help/toolbox/images/ref/strel.html
In particular: "For all shapes except 'arbitrary', structuring elements are constructed using a family of techniques known collectively as structuring element decomposition. The principle is that dilation by some large structuring elements can be computed faster by dilation with a sequence of smaller structuring elements. For example, dilation by an 11-by-11 square structuring element can be accomplished by dilating first with a 1-by-11 structuring element and then with an 11-by-1 structuring element. This results in a theoretical performance improvement of a factor of 5.5, although in practice the actual performance improvement is somewhat less.
View this message in context: Re: strel (was: image processing function list)
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