Distance from fixed object to threshold particle in a stack

Posted by burt46 on Jan 02, 2016; 11:42pm
URL: http://imagej.273.s1.nabble.com/Distance-from-fixed-object-to-threshold-particle-in-a-stack-tp5015307.html

Hi,

I am trying to calculate the distance from a fixed object to particles in a stack sequence that have a certain threshold once processed. The nearest i have seen, based on other forum posts, was one entitled "plot profile in a stack" (http://imagej.1557.x6.nabble.com/plot-profile-in-a-stack-td3695085.html) whereby a line can generate slices then export to a text file. This is what im looking for, but it only limits the analysis based on particles on top of the line. Think of this scenario, on a football pitch, if i draw a line through the goal line on one side, then have a stack of aerial images of the entire pitch, i want to calculate the distance a particular player is from the goal line as he runs around the pitch (i.e. each stack image).

Any ideas how this can be done, or at least determine the distance of the closest particle to the fixed position?

Many thanks