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Thanks for your reply,<br><br>But Actually I wanted to know which seeds to pick ?<br><br>I mean in the example provided with the ITKuserguide .. it is applied on BrainProtonDensitySlice.png image and it uses the first seed (61,140 ) and the other seed which is from outside the white matter at ( 63,43 )<br>but when I changed the points to follow the same rule - connected to first seend and NOT connected to the other - so I picked (110, 160 ) and the other seed also ( 63, 43) with lower intenisty 166 .. it gave completely strange output.<br><br>so .. any help will be appreciated.<br><br>Thanks a lot.<br><br><hr id="stopSpelling">Date: Fri, 6 Mar 2009 14:00:06 -0500<br>Subject: Re: [Insight-users] region growing segmentation -- isolatedConnectedImageFilter<br>From: harvey.cline@kitware.com<br>To: sara_alkady@hotmail.com<br>CC: insight-users@itk.org<br><br><div>Hi </div>
<div> </div>
<div>In the example of segmenting the brain from the scalp. The first seed is placed in the brain and the second seed in the scalp. The program uses a binary search to find the smallest threshold value that automatically separates the brain from the scalp. <br>
<br></div>
<div class="EC_gmail_quote">2009/3/6 sara al kady <span dir="ltr"><<a href="mailto:sara_alkady@hotmail.com">sara_alkady@hotmail.com</a>></span><br>
<blockquote class="EC_gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div>hello,<br><br>We've been trying to use region growing techniques to separate the brain components-we're working on axial slices- but there is something that I don't understand in the IsolatedConnectedImageFilter which is .. Which 2 seeds do I have to pick to separate the components ?<br>
I understand that the first seed should be related to the component I want and the 2nd seed from outside it, but it doesn't work with any seed , I think it has to be a specific seed to make the segmentation work correctly.<br>
<br>if anyone knows how to pick the seed or if I misunderstood something and need to use another filter completely kindly tell me.<br><br>Thanks,<br>Sara Al-Kady<br><br>
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