http://imagej.273.s1.nabble.com/Segmenting-touching-tubular-objects-tp5015488p5015492.html
> I agree. Cut grooves in a small wooden plate in regular intervals and get
> your pellets to sit in them. Take a photo and then your life is much
> easier.
>
> Something like this site offers should be available where you are. Or ask
> around about a hacker/makerspace locally. They would likely cut something
> for you for a fee. Paint it a reasonable "background" color and shake your
> product over it to get things into the grooves. We've done this for similar
> shaped objects at my work.
>
> B
>
> On Sat, Jan 30, 2016 at 2:20 AM, Gabriel Landini <
[hidden email]>
> wrote:
>
>> On Friday 29 Jan 2016 16:47:26 ecophysulm wrote:
>> > I'd like to use ImageJ in an picture analysis for a in theory simple
>> topic
>> > which appears not so easy for me in practise.
>> > I have photographs of small zylindric pellets and want to analyse them
>> with
>> > the Particle analyzer. Beside the issue that the picture carries some
>> > reflections which I have more or less managed to get rid of. But the
>> major
>> > issue appears to be the segmentation: the objects to analyse are not
>> > separated and are partly touching each other while having a elongated
>> and
>> > cylindric form.
>>
>> It will be difficult to separate 2 pellets side by side with the watershed
>> separation. It is not made for that kind of problem.
>>
>> I see this as a problem that could be resolved outside the imaging part.
>> What you want is to have the objects completely separated from each other
>> from
>> the start, so you do not have to separate them.
>>
>> I would use some kind of surface or tray where the pellets fall/slot in a
>> preferred position and cannot overlap.
>> I am thinking of some surface with grooves or undulations?
>>
>> Cheers
>> Gabriel
>>
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http://imagej.nih.gov/ij/list.html>>
>
>