Re: Help: distance between hole and particle's surface
Posted by
karo03 on
Jun 27, 2008; 9:09am
URL: http://imagej.273.s1.nabble.com/Help-distance-between-hole-and-particle-s-surface-tp3695734p3695735.html
One way is to calculate the distance transform on the (filled)
particles (Binary->Distance Map) and take the minimum of the distance
transform of each hole (Measure with Set Measurement Min&Max
Grayvalue, Redirect to Distance Map). Be careful with scaling,
distance map gives number of pixels to the nearest background!
Regards
Karsten
Am 27.06.2008 um 10:20 schrieb Josep M.:
> Hi everyone,
>
> I am dealing with particles with a single hole. I am trying to
> measure the
> shortest distance between the hole surface and the particle surface,
> but I
> dont manage to calculate it.
>
> I have tried by programming a macro loop where the hole is selected,
> enlarged a pixel, and measured again, until the hole touches the
> particle
> surface and the particle becomes solid. The number of iterations
> should
> have been the shortest distance. But pixels are squared, so the
> growing
> hole tends to become a square shape, and therefore the procedure is
> not
> valid.
>
> I have no idea about how to measure that distance. Any tool or idea
> you may
> have will be kindly welcome.
> Thank you in advance.
>
> Josep M.