How can I remove unwanted edges?

Hello all,

I got this image after applying my edge detection algorithm to an MRI brain image and after a skull stripping operation. as you can see there is some noise corresponding to the skull, how can I delete them and keep only the brain mass.

help me please.

Answer 1

[Image Analyst]

Why did you do an edge detection? That pretty much destroyed your brain.

And anyway, even if you do want the edges as your final output image, I don't know which edges you consider noise and which edges you want to keep. If it's just based on size, you can use bwareaopen() to toss out really small, short edges.