Edge detection by Ant algorithm

2014 1 1
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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.

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Image Analyst
Image Analyst 2014-1-1

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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.

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hamed abdulaziz
hamed abdulaziz 2014-1-1
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
Image Analyst 2014-1-1
I think the active contour example I posted will work well with the ant edges you gave above. Do you not agree?

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hamed abdulaziz
hamed abdulaziz 2014-1-1

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Here it is
and below another melanoma image sample

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