Re: Connecting Two Nearby Edges

Posted by ctrueden on Jun 11, 2014; 5:54pm
URL: http://imagej.273.s1.nabble.com/Connecting-Two-Nearby-Edges-tp5008141p5008142.html

Hi James,

> Is there any program I can run which will automatically connect nearby
lines?

Morphological operations seem like your friends here. I'm no expert, but as
a first stab, you could Make Binary, Dilate a couple of times, then
Skeletonize. Here is the result on your sample:

[image: Inline image 1]

Note that in this case, it also skeletonized your red circle. ;-)

Regards,
Curtis


On Wed, Jun 11, 2014 at 12:35 PM, James Male <[hidden email]> wrote:

> Hello,
>
> I am trying to measure two different particles of a very similar brightness
> and have been attempting to do so by subtracting a canny edge detection
> image from the original image in order to create a white barrier between
> the two particles. However, the edge detected by the canny edge detector
> does not completely split the two regions. Is there any program I can run
> which will automatically connect nearby lines? For my purposes I cannot use
> manual tools such as the pencil.
>
> I have attached an image of the region I am talking about (circled in red)
> and an image of what I want the image to look like (drawn in blue).
>
> Thank you,
> James
>
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