<html>
<head>
<style><!--
.hmmessage P
{
margin:0px;
padding:0px
}
body.hmmessage
{
font-size: 10pt;
font-family:Verdana
}
--></style>
</head>
<body class='hmmessage'>
Hello,<br><br>Just a word to say that using this pipeline<br><br>RegionOfInterestImageFilter<br>MedianImageFilter<br>PasteImageFilter<br><br>it works, I mean I quickly tried and I got a good visual result (only the part I chossed has been filtred) <br><br>Thanks,<br>Steve<br><br>> From: imacia@vicomtech.org<br>> To: luis.ibanez@kitware.com; steve.harris18@hotmail.com<br>> CC: insight-users@itk.org<br>> Subject: RE: [Insight-users] Apply filter only on a specific region ?<br>> Date: Mon, 25 Jan 2010 18:15:20 +0100<br>> <br>> Hi Luis,<br>> <br>> Just a question. We were discussing here at work the meaning of the<br>> different regions (Largest vs Requested vs Buffered). One question we had is<br>> if you can process a part of the image only by setting the Requested Region<br>> on the output, which seems quite straightforward and compatible with the ITK<br>> pipeline definition. What would you get here? An image whose Largest<br>> Possible Region is the same as the one you requested?<br>> <br>> The idea I have is that the Requested Region is an important part of the ITK<br>> pipeline and is used by the filters, at least internally, so why is its use<br>> discouraged in this case?<br>> <br>> Thanks in advance<br>> <br>> Iván<br>> <br>> PD: it is common the case in which we have to process only a certain part of<br>> the image in medical applications, for example when we have to calculate<br>> statistics in a region of interest from a 3D image, as defined by the<br>> radiologist. It may be inconsistent from the point of view image processing<br>> but it works :) This is just an example but we have find many cases in which<br>> we have had to restrict ourselves only to a certain part of the image as<br>> defined by the user, due to memory limitations or for a faster processing<br>> among other reasons.<br>> <br>> <br>> -----Mensaje original-----<br>> De: insight-users-bounces@itk.org [mailto:insight-users-bounces@itk.org] En<br>> nombre de Luis Ibanez<br>> Enviado el: domingo, 24 de enero de 2010 16:11<br>> Para: dsdfdff sfdsf<br>> CC: insight-users@itk.org<br>> Asunto: Re: [Insight-users] Apply filter only on a specific region ?<br>> <br>> Hi Steve,<br>> <br>> It depends....<br>> <br>> What exactly do you want at the output ?<br>> <br>> A) The full input input with the subregion modified ?<br>> <br>> or<br>> <br>> B) only the modified subregion ?<br>> <br>> ---<br>> <br>> If you want (A) you will have to use a pipeline<br>> such as:<br>> <br>> RegionOfInterestImageFilter<br>> MedianImageFilter<br>> PasteImageFilter<br>> <br>> If you want (B) you could use simply<br>> <br>> <br>> RegionOfInterestImageFilter<br>> MedianImageFilter<br>> <br>> or even use the SetRequrestedRegion()<br>> of the Median filter directly. Although<br>> this last option is not a recommended<br>> practice, unless you are very familiar<br>> with the inner-workings of the ITK pipeline.<br>> <br>> <br>> --<br>> <br>> On a side note:<br>> <br>> Why do you want to do such thing ? :-)<br>> <br>> From the pure image processing point of view,<br>> it doesn't seem to be a good operation. You<br>> will end up with an inconsistent image...<br>> <br>> <br>> <br>> Regards,<br>> <br>> <br>> Luis<br>> <br>> <br>> --------------------------------------<br>> On Fri, Jan 22, 2010 at 5:51 AM, dsdfdff sfdsf<br>> <steve.harris18@hotmail.com> wrote:<br>> > Hello itk user,<br>> ><br>> > I was wondering if it was possible to apply a filter only on a specific<br>> > region of an image (like setting a bundary region)?<br>> ><br>> > for example if I have a simple 3D image (let say 30x30x30) is it possible<br>> > for example to apply the mean filter<br>> > only on the region (15x15x15)?<br>> ><br>> > regards,<br>> > Steve<br>> ><br>> > ________________________________<br>> > Faites une bonne action avec Bing Solidaire ! C'est ici !<br>> > _____________________________________<br>> > Powered by www.kitware.com<br>> ><br>> > Visit other Kitware open-source projects at<br>> > http://www.kitware.com/opensource/opensource.html<br>> ><br>> > Kitware offers ITK Training Courses, for more information visit:<br>> > http://www.kitware.com/products/protraining.html<br>> ><br>> > Please keep messages on-topic and check the ITK FAQ at:<br>> > http://www.itk.org/Wiki/ITK_FAQ<br>> ><br>> > Follow this link to subscribe/unsubscribe:<br>> > http://www.itk.org/mailman/listinfo/insight-users<br>> ><br>> ><br>> _____________________________________<br>> Powered by www.kitware.com<br>> <br>> Visit other Kitware open-source projects at<br>> http://www.kitware.com/opensource/opensource.html<br>> <br>> Kitware offers ITK Training Courses, for more information visit:<br>> http://www.kitware.com/products/protraining.html<br>> <br>> Please keep messages on-topic and check the ITK FAQ at:<br>> http://www.itk.org/Wiki/ITK_FAQ<br>> <br>> Follow this link to subscribe/unsubscribe:<br>> http://www.itk.org/mailman/listinfo/insight-users<br>> <br> <br /><hr />Windows 7 : Trouvez le PC qui vous convient! <a href='http://clk.atdmt.com/FRM/go/181574577/direct/01/' target='_new'>Découvrez notre offre ! </a></body>
</html>