On Friday 13 January 2006 04:49, Sudhakar Jaganathan wrote:
> Is there a method or plugin to measure number of nodes and branches in the
> skeletonized image
For the nodes:
BinaryConnectivity_.class
Returns the number of connected pixels (+1) to each foreground pixel (8
neighbours): background = 0, single pixel = 1, end of a line = 2,
bifurcations = 3, triple points = 4, etc. Brightness/Contrast must be
adjusted to see the result.
It is included in the Morphology collection of plugins here:
http://www.dentistry.bham.ac.uk/landinig/software/software.htmlFor the node branches, I am not sure IJ can measure the length of lines as
done in other imaging programmes (like Optimas, for instance, where one
explicitly must set a 'line analysis mode'). Does anybody know anything about
this?
One could delete the various branching points and measure the number of pixels
in the remaining clusters (this of course would be just an underestimation,
and not very good either [the maximum error factor would be sqrt(2) when all
the pixels are orientated along a diagonal line ]).
Cheers,
Gabriel
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