What is a good boundary detection technique?

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Alan F Rawle

Try Image J (freeware from NIST). This is a standard image analysis technique. Convert the image into a 256 gray scale (gif) and then threshold and binarize would be my route forward,

Khalid Al-Hussaini

Boundary Detection Benchmark: Algorithm Ranking

Dear, check this link:

https://www2.eecs.berkeley.edu/Research/Projects/CS/vision/bsds/bench/html/algorithms.html

John Sosa

I recommend you like at MIPAR at http://MIPAR.us. You can likely make yourself, of is be happy to make one for you, a Recipe robust enough to do as you need. Great support, intuitive UI, powerful technology.

Cheers,

John

Stafford Michahial

Chain vese boundary detection

https://www.researchgate.net/publication/304750054_Modified_Level_Set_Method_and_Chain-Vese_Methods_using_Srad_Filter_for_Ultrasound_Images

look in to the parer which i used for boundary

Article Modified Level Set Method and Chain-Vese Methods using Srad ...

You may want to enjoy this before Labor (in vain) Day:

November 19th, 2015 The mathematics of image analysis

https://www.brainshark.com/malvern/vu?pi=312905118&b=1&tx=120486&c1=22

Veeranjaneyulu Toka

Hi Stafford Michahial,

Looks like the approach that you have shared works mostly on medical images... I am wondering whether i can apply on normal images. Plz let me know your suggestion.

Thanks,

Veeru.

Hi All,

Thank you all for your suggestions. I have tried a couple of methods but could not get good accuracy (above 70%). The problem that i have been facing is " assume an object which has got multiple colours in it and computing outer boundary of it".

One more thing is that, i have a seed point (the point which is from a particular object) info, so have to compute the boundary of an object around that seed point.

@Aparna Murthy: I had a look into the book that you have referred (though not completely), looks to me it is heavily dependent on the image colour information in which case it fails in the above case. Is not it?