Extract information from images

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Julia il 12 Nov 2014
Modificato: Julia il 18 Nov 2014
I am trying to extract information from the attached image of a coal sample, as for example the length and with of the fractures and the connection between them. I am using a filter and turn it into a black and white image, but have not found the right method yet, to get extract data that I can use for a statistical analysis. I have been checking the bioinformatics toolbox, which contains methods to describe the connections between biograph objects (depth first search, shortest path algorithm), but it doesn't seem to be what I am looking for. Does anyone have experience on a similar problem and could give me some useful hints?

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Image Analyst
Image Analyst il 12 Nov 2014
Try the Image Processing Toolbox.
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Image Analyst
Image Analyst il 15 Nov 2014
You need to spatially calibrate. See my spatial calibration demo, attached.
Julia il 18 Nov 2014
Modificato: Julia il 18 Nov 2014
This is an awesome demo, thanks for that. In general it does the job, but I am looking for a way to automate the search!? I have been going down several paths but do not seem to find the right solution. Since I have a binary matrix I suppose it would be some algorithm counting all subsequent ones in an array of zeros..

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