[Insight-users] Regarding fast marching

[amit satish]

I am using ItK fast marching for liver tumor segmentation. I want to select manually seed point and output is segmented tumor. My problems is as below,
>  1.can you specify exact value of alpha,beta and sigma for all examples?
>  2.it's very difficult to give threshold value everytime. I am trying to implement a method such that radiologists will choose seed point in tumor region and our algorithm will give exact boundary of tumor. All other parameters i want to set by me.
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>  Regards,
>  Amit