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Re: Removing Parts of the Image Below a Threshold Size

Posted by Gabriel Landini on Jan 05, 2010; 3:10pm
URL: http://imagej.273.s1.nabble.com/Removing-Parts-of-the-Image-Below-a-Threshold-Size-tp3689834p3689835.html

On Tuesday 05 Jan 2010  15:06:37 you wrote:
> Is there any way to remove from the image 'bits' that are below a
> certain size, i.e. to do a size threshold (analogous to an intensity
> threshold?). I know you can do this when measuring particles, but I
> want to do it before this from a stack of images prior to creating a z-
> projection from the image.

That would take some time to do interactively as one has to process all the
thresholded areas each time there is a change of threshold.
However you can threshold first and then delete particles on the binary image,
based on their size.
Partilces8 and Particles4 can delete particles less and larger than certain
size in pixels.
These are in the Morphology collection here:
http://www.dentistry.bham.ac.uk/landinig/software/software.html

Cheers.
G.