<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">Just for additional reference, the SliceBySliceImageFilter behaves the same way with its filter parameters. I can't think of any others.<div><br></div><div>Brad<br><div><br></div><div><br><div><div>On Apr 21, 2015, at 6:50 AM, Gaetan Lehmann <<a href="mailto:gaetan.lehmann@gmail.com">gaetan.lehmann@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><div dir="ltr">Hi Arnaud,<div><br></div><div>The output filter is there to be able to apply a pipeline to each object, instead of just a single filter.</div><div>When applying a single filter, the input and output filters are the same filter.</div><div>When applying a pipeline, the input and output filters are not the same filters, maybe not even the same type. It is the responsibility of the user to connect the pipeline properly - this is why the output of the input filter is never used.</div><div><br></div><div>HTH,</div><div><br></div><div>Gaëtan</div><div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">2015-04-21 10:20 GMT+02:00 Arnaud Gelas <span dir="ltr"><<a href="mailto:arnaudgelas@gmail.com" target="_blank">arnaudgelas@gmail.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Gaetan,<br>
<br>
I am spending quite some time on ObjectByObjectLabelMapFilter, and I don’t really understand conceptually the purpose of the OutputFilter vs the InputFilter. Can you give some explanations, please?<br>
<br>
Looking at the code, it is bogus if the OutputFilter is different from the InputFilter (in such a case, the pipeline is not fully connected, i.e. the output of the InputFilter is not connected to any internal filter).<br>
<br>
Thanks,<br>
Arnaud</blockquote></div><br></div>
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