Edges of narrow objects in image

Hi everyone,

I have the following image and when I look at the boundaries, soem part of two boundaries are o ntop of each other. How can I make sure the boundaries of a narrow object (containing maybe one pixel) is coorectly detected?

thank you,

Parinaz

[Turlough Hughes]

Can you attach the original image using the paperclip button for attachments, and provide code you used to generate the binary image to the right.

Answer 1

[parinaz nazeri]

I resized the image 3 times and use bwboundaries to find its boundaries, then for the boundaries of the real image, I found the closest integer to points of the resized boundaries divided by 3.

Answer 2

[Shubh Sahu]

Here are the few links which might help you:

https://www.mathworks.com/help/images/ref/edge.html?searchHighlight=edge&s_tid=doc_srchtitle

and try with different methods like Canny, Prewitt, etc. whichever may help your image.

[parinaz nazeri]

Thank you!