There may be a more elegant way, but I would do the following:<div><br></div><div>- Create a copy of the input image with ImageDuplicator. Fill the duplicated image with zeroes.</div><div>- Use RegionOfInterestImageFilter to extract the computed region from the input image.</div>
<div>- Perform filtering on the output of the ROI filter.</div><div>- Use PasteImageFilter to copy the filter result into the zero-filled image.</div><div><br></div><div>See <a href="http://www.itk.org/Wiki/ITK/Examples" target="_blank">http://www.itk.org/Wiki/ITK/Examples</a> for example usage of the aforementioned filters.</div>
<div><br></div><div><br><div class="gmail_quote">On Thu, Mar 17, 2011 at 10:51 AM, Alexander Taghva <span dir="ltr"><<a href="mailto:alextaghva@gmail.com" target="_blank">alextaghva@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br><br>I would like to take an image, crop it to its nonzero content, perform some filtering, then zero pad the image back to its original dimensions. So far, I am able to compute the bounding box with a mask spatial object doing something like this:<br>
<br>RegionType boundingBoxRegion = m_MaskSO->GetAxisAlignedBoundingBoxRegion();<br><br> but I don't know where to go from here. I'm relatively new to ITK. Thanks for your help.<br><br>Alex<br>
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