Posted by
Anast, John on
May 24, 2007; 6:50pm
URL: http://imagej.273.s1.nabble.com/particle-distribution-randomness-uniformity-tp3699301p3699310.html
Kiran,
Have you looked at the std dev of the shortest distances...should have a
very low stdev for uniform distribution. With clusters, you may want to
look at three or N- nearest neighbors for each particle.
Another approach is to grid the image and count particles in each box
and look at that distribution vs box size
...john
-----Original Message-----
From: ImageJ Interest Group [mailto:
[hidden email]] On Behalf Of
Annapragada, Sriram K.
Sent: Thursday, May 24, 2007 12:30 PM
To:
[hidden email]
Subject: particle distribution - randomness/uniformity
I had the following question. Any help will be really appreciated
I have a stack of binary-8bit images with a random distribution of
particles; also each image has a different number of particles. I was
trying to find out how random the distribution was i.e. how uniformly
the particles are distributed across each image.
One of the previous mails to this list suggested averaging the shortest
distance between all the particles - but that does not show any
significant difference between images.
Is there a another way to do this?
thanks,
Kiran.