How to increase the thickness or darkness of edge after edge detection?
After using Laplacian operator for edge detection, i find that the edge is too thin, May i ask if there are ways to increase the thinkness or darkness in order to sharpen the edge detected?
Image after bitwise not operator:
You could try to compute the difference of gaussian, with different kernel size, you should be able to detect edges of different size.
I am satisfy with the result of edge found for this kernel size, but what i want to do is just make the edge found more clearly shown