Re: Edge Enhancement

Posted by Sidnei Paciornik on
URL: http://imagej.273.s1.nabble.com/Edge-Enhancement-tp5003576p5003581.html

Hi Jan
I guess this is not quite the answer.  I don't need edge detection, but
edge enhancement. I couldn't figure how either of your hints would do it.
The algorithm should be simple. Take a neighborhood, calculate min, max,
and range R.
Pick a threshold T.
If T>R it is not an edge, keep input pixel.
Else exchange pixel with max or min.

I just don't know how to program it.
Any other hints?
Thank you.
 Em 22/06/2013 04:24, "Jan Brocher - BioVoxxel" <[hidden email]>
escreveu:

> Hi Sidnei,
>
> There is a plugin called Image Edges from Thomas Boudier (I think it is
> not included in Fiji by default but available on the following site:
> http://imagejdocu.tudor.lu/doku.php?id=plugin:filter:edge_detection:start
> ).
> Another possibility would be the "Edges" in FeatureJ from Eric Meijering
> which enables you to suppress "halo" effects. To my knowledge both plugins
> apply Canny edge detection based algorithms.
>
> regards,
> Jan
>
>

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