<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-family: Calibri, sans-serif; "><div>Hi,</div><div><br></div><div>I have segmented cells in tissue sections using a morphological watershed. So the output is a label image.</div><div>The segmentation result is not bad. However, the surfaces of the cells seem to have disturbances and some tiny artifacts (probably due to the distance map which I used as gradient image).</div><div><br></div><div>So I am looking for a method to smooth the surfaces of the cells without loosing to much detail. I found the itkAntiAliasBinaryImageFilter, but it requires a binary image as input. I cannot reduce the label image to a binary image because sometimes the cells have no background between them, which means that I cannot separate them again.</div><div><br></div><div>Is there any surface smoothing filter which operates on a label image? </div><div>How can I transform a label image into an input image for a level set filter?</div><div><br></div><div>Thanks,</div><div>Thomas</div></body></html>