Dear Arindam,
could you post an example image, so it gets a little clearer how your
objects of interest look like. Since this is the basis to figure out any
suitable processing and analysis procedure.
Since you say you are new, I guess you have your images currently as they
come from the camera. To measure a feature like the perimeter the way to go
will most likely be to segment the image e.g. using an >Image >Adjust >Auto
Threshold or a trainable segmentation algorithm (>Plugins >segmentation
>Trainable Weka segmentation for more complex images.
It might also be interesting to read this as a short introduction:
http://imagej.net/Image_Processing_Principles#Considerations_during_Image_Segmentation_.28Binarization.29.
Thereafter, the question is, are all objects present as individual entities
or are they still connected. Therefore, e.g. the >Process >Binary
>Watershed might help. Finally, the >Analyze >Analyze Particles... will (in
most cases) already be sufficient to retrieve the perimeter.
You can explore those hints basically on your own. But for further help an
example image will improve any suggestion from the list immensely.
Kind regards,
Jan
2015-10-26 23:04 GMT+01:00 Arindam Chatterjee <
[hidden email]>:
> Hi,
>
>
> I am trying to measure the perimeter of an irregular shaped surface,
> actually several stacks of them. I see a ton of plug-ins and macros, but
> was hoping for some pointers from someone who might have already figured
> the best plug-in for a task like that. Eventually I am hoping I can create
> a macro that I can run to do something like that. Sorry - quite new to
> using ImageJ this way. Any pointers would be appreciated!
>
>
> Thanks!
>
> Arindam
>
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