<div>Hi Elena</div>
<div> </div>
<div>In segmentation using region growing a threshold that is too low will connect to unwanted regions; while, if it is too high it does not completely segment the region of interest. An algorithm to find the best threshold involves testing the connectivity between the object to be segmented and other objects that are not wanted. Often this is done by trial and error; however, it may be coded using a binary search to find the best connection between regions.</div>
<div> </div>
<div>regaurds</div>
<div>Harvey<br><br></div>
<div class="gmail_quote">On Thu, Jul 16, 2009 at 5:59 AM, Elena Molina <span dir="ltr"><<a href="mailto:elenam85@gmail.com">elenam85@gmail.com</a>></span> wrote:<br>
<blockquote style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex" class="gmail_quote">Hi all!<br>Is there some algorithm to calculate the best lower and upper thresholds in <br>segmentation algorithms?<br>
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