<div>Hi Niranjan</div> <div>I tried to use your hints but as I undrestand ThresholdSegmentationLevelSetImageFilter uses static functions.</div> <div>Thanks a lot for attention. </div> <div>Alireza<BR><BR><B><I>Niranjan Joshi <njoshi@robots.ox.ac.uk></I></B> wrote:</div> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Hi there,<BR><BR>I am also trying to do the same. so far I have figured out the following:<BR>1. you can modify the ThresholdSegmentationLevelSetImageFilter and <BR>ThresholdSegmentationLevelSetFunction or<BR>alternatively you can create the new class from scrach from the parent <BR>classes of the respective filter.<BR>2.you need to redefine the following virtual functions in you class <BR>definitions: InitializeIteration() and CalculateSpeedImage()<BR><BR>I dont know how to modify the advection term as I am not using it at all.<BR><BR>hope this
helps,<BR><BR>Niranjan.<BR><BR>alireza akhundi asl wrote:<BR><BR>> Hi<BR>> I'm trying to implement Active contours without edge method using <BR>> levelset. so i need to update advection and propagation images in each <BR>> iteration. I dont know which class is good for my base class and which <BR>> virtual functions are more important. As I undrestand classes such as <BR>> Segmentationlevelsetfunction and Segmentationlevelsetfilter and <BR>> SparseFieldLevelsetimagefilter and levelsetfunction are important ones.<BR>> thanks for attention<BR>> Alireza<BR>><BR>> ------------------------------------------------------------------------<BR>> Talk is cheap. Use Yahoo! Messenger to make PC-to-Phone calls. Great <BR>> rates starting at 1¢/min. <BR>> <HTTP: evt="39666/*http://beta.messenger.yahoo.com" us.rd.yahoo.com *http: postman7 taglines mail_us><BR>><BR>><BR>><BR>> <HTTP: evt="39666/*http://beta.messenger.yahoo.com"
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