Fixed incorrect Offset computation

LFtoSR.m

@@ -24,7 +24,7 @@ Label = padarray(Label,[1,1,0,0,0],nan,'both');
 LFDisp = padarray(LFDisp,[1,1,0,0,0],nan,'both');
 ImgSize(1:2) = ImgSize(1:2)+2;
 LFSize = [ImgSize,ImgRes];
-Offset = Offset-1;
+Offset(1:2) = Offset(1:2)-1;
 
 seh = strel('arbitrary',[1,0,1]);
 sev = strel('arbitrary',[1,0,1]');