Image analysis - Structure identification

Hello, I'd like to know if it exists image analysis toolbox on Matlab for structure identification. On this link, you'll find an example of structure identification done manually (purple solid lines) : http://www.developpez.net/forums/d1254633/environnements-developpement/matlab/analyse-dimage-identification-structures/#post6855240 Maybe some automatic methods could be apply ? Thanks,

[Jürgen]

Some autmatic methods exist yes but you have to decide first what technique you want to use, another thing: I wanted to look at the picture but can not get access without reggistration, that's not really handy so please give a bit more information

[Image Analyst]

That web site didn't show me the picture, just some form to fill out, in French. Try tinypic.com where we can actually see the image immediately without having to download it or sign up for some service. But anyway, yes, I imagine that you could program up something in MATLAB to identify structures, especially if they're rather obvious and stand out from the background in some contrasting way.