Edge detection by Ant algorithm

Hi All, I need to detect the edges in the image,I used the code on Edge detection by Ant algorithm ,But I didn't got perfect result and bad mask as shown below

 ,please can anyone  provide me by another better code,thanks in advance.

Answer 1

[Image Analyst]

I thought I gave you a really good answer in your prior, duplicate question http://www.mathworks.com/matlabcentral/answers/111131#answer_119804. Perhaps I'll respond to this follow up question if you'll

1. respond to my answer there, where I thought I gave you a pretty good solution for that question, and
2. post your original gray scale image so we can see what image you're trying to find edges of , and we can see if edge detection is even the best approach.

[hamed abdulaziz]

I responded to your answer there,thank you very much,and I posted a sample image that I want to detect it's edges.

[Image Analyst]

I think the active contour example I posted will work well with the ant edges you gave above. Do you not agree?

Answer 2

[hamed abdulaziz]

Here it is

and below another melanoma image sample