Posted by
Gabriel Landini on
Dec 02, 2008; 11:16am
URL: http://imagej.273.s1.nabble.com/Measurement-hierarchy-tp3694349p3694350.html
On Tuesday 02 December 2008 10:28:50 Karsten Rodenacker wrote:
> See image
http://picasaweb.google.com/lh/photo/CebTTCSWQsR5LjUzN9BRPg;> I would like to measure several parameters like area, mean density,
> variation etc. for each region and for each small particle. As the
> region image is (in this case) an exo-skelteton derived from the
> particles, each region has a related particle.
>
> Unluckily "Analyse particle" numbers each measurement different. To
> preserve the relationship I have to measure the regions and the
> particles both additionally with the label image to get a common label.
Hi Karsten,
You could try creating a results table that stores both, the start points of
the tiny particles and the starting points of the particle they belong to at
the same time (in different columns), so you can index the particles
according to the parent partice/partition.
To do this, you could: first extract the start points of the little particles
in the nucleus (binary image on the right), then one by one, reconstruct the
partitioned nucleus image (image on the top) based on the start points of the
small particles as seed. This will reconstruct a parent particle at a time
and now you can extract its XStart YStart coordinates.
So now you have both the tiny particle start point and the parent particle
start point and can identify which one is inside which one.
Of course one has to store the tiny particles' starting points in an array as
the 2nd extraction might overwrite the table.
I hope it is clear.
Regards,
Gabriel