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<body><div style="text-align: left;">Hi,<br>I have an 3d image which is a brain and the air surrounding it when scanned, when I render the data on the window, it gives me a red cube, which should be the air, and I cannot see the brain, how can I tell vtk not to render the air voxels and show only the brain voxels? I guess one way to do it using thresholding, but I am not quite sure, please help.<br><br>thanks<br><br>hank <br></div><br /><hr />中国十大热门旅游景点 <a href='http://search.msn.com/results.aspx?q=%E4%B8%AD%E5%9B%BD%E5%8D%81%E5%A4%A7%E9%A3%8E%E6%99%AF&mkt=zh-CN&form=QBRE' target='_new'>了解更多信息!</a></body>
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