<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div>Hello all,</div><div><br></div><div>I am trying to use the "ImageRegistration12.cxx" in the example to perform mask registration. But the results seem to me are not working. I simply tried the example without changing anything. The attachments are the images I tried. <br></div><div><br></div><div>The result of registering image2 with image3 providing image1 as mask (2-3-1) is exactly the same as registering image2 with image3 providing image2 itself as mask (2-3-2), which should not be. I also tried this for 2-1-1, 2-1-2, and seems like using masking is not contributing. <br></div><div><br></div><div>Any suggestions? <br></div><div><br></div><div>Thanks. <br></div></div></body></html>