Re: need help on various watershed segmentation algorithms

Posted by Gabriel Landini on Dec 28, 2007; 10:08pm
URL: http://imagej.273.s1.nabble.com/need-help-on-various-watershed-segmentation-algorithms-tp3697689p3697692.html

On Friday 28 December 2007, Michael Schmid wrote:
> to increase your confusion, there is at least one more:
> Process>Binary>Find Maxima can do Watershed segmentation based
> on *pixel values* (as the watershed command by Daniel Sage,
> without preprocessing).

Ah, yes, sorry I forgot that one, thanks.

Is that the same as the skiz? (skeleton of the [binary] background)?

I guess (but could be very wrong) that the Process>Binary>Watershed has a
limitation of the maximum 255 computable distances same as the EDM command?

Some time ago I wrote a macro to do EDMs beyond the 255 limit of built in EDM
function (in the Morphology collection). That may come in handy if the
particles are larger than 255 in diameter, but it will not do the subpixel
correction that Michael mentioned.

Regards,

G.