<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Monaco; min-height: 14.0px">I've implemented the iterator to substitute the labeled pixels for the image pixels. However, the display still looks incorrect. I'm wondering if I could have set up the iterator incorrectly? My most recent code is attached. If not, it may be a display problem and I will try the VTK mailing list.</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Monaco; min-height: 14.0px"><br></p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Monaco; min-height: 14.0px">Thanks,</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Monaco; min-height: 14.0px">Sara</p><p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 10.0px Monaco; min-height: 14.0px"><span class="Apple-tab-span" style="white-space:pre"></span></p></body></html>