<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 the format of :itk: transformation file. </div><div><br></div><div>In such a text file for affine matrix (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><font class="Apple-style-span" face="Courier" size="4">T = [a b c x;</font></div><div><font class="Apple-style-span" face="Courier" size="4"> d e f y;</font></div><div><font class="Apple-style-span" face="Courier" size="4"> g h i z; </font></div><div><font class="Apple-style-span" face="Courier" size="4"> l m n 1]</font></div><div><br></div><div>in such that </div><div><span class="Apple-style-span" style="font-family: Courier; font-size: large; ">T * [x y z 1]^T = [x'/s y'/s z'/s 1]^T</span></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,</div></div><div>
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="color: rgb(0, 0, 0); border-collapse: separate; font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div style="color: rgb(0, 0, 0); "><font class="Apple-style-span" color="#919191">---</font></div><div style="color: rgb(0, 0, 0); "><font class="Apple-style-span" color="#919191">Seung-Goo KIM </font></div></div></span></div></span><span class="Apple-style-span" style="color: rgb(145, 145, 145); "><div><span class="Apple-style-span" style="color: rgb(145, 145, 145); "><br></span></div>PhD student</span><span class="Apple-style-span" style="orphans: 2; text-align: -webkit-auto; text-indent: 0px; widows: 2; -webkit-text-decorations-in-effect: none; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div><font class="Apple-style-span" color="#919191">Research group "Cortical Networks and Cognitive Functions"<br>Max Planck Institute for Human Cognitive and Brain Sciences<br>Stephanstraße 1A, 04103 Leipzig, Germany</font></div></div></div></span></div></span></span>
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