<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div>Dear ITK/VTK experts,</div><div><br></div><div>I have a question on format of :itk: transformation file. </div><div><br></div><div>In such a file (generated by ANTS): </div><div><div><font face="courier new, monospace">#Insight Transform File V1.0</font></div><div><font face="courier new, monospace"># Transform 0</font></div><div><font face="courier new, monospace">Transform: MatrixOffsetTransformBase_double_3_3</font></div><div><font face="courier new, monospace">Parameters: a b c d e f g h i l m n</font></div><div><font face="courier new, monospace">FixedParameters: x y z</font></div></div><div><br></div><div>Does it mean a transformation matrix as</div><div><br></div><div>T = [a b c x; d e f y; g h i z; l m n 1]</div><div><br></div><div>such that T * [x y z 1]^T = [x'/s y'/s z'/s 1]^T</div><div>where [x,y,z] is original coordinates and [x/s', y'/s, z'/s] is transformed coordinate with s as global scaling factor?</div><div><br></div>or something else?<div><br></div><div><br></div><div>Best,<br clear="all"><div><div><span style="color: rgb(153, 153, 153); ">---</span></div><div><span style="color: rgb(153, 153, 153); ">Seung-Goo KIM</span></div></div></div></div><div><span style="color: rgb(153, 153, 153); "><br></span></div></body></html>