 v~[-134,105] (and typically
 u,v~[-100,100]). The applied transformation is L=L/270, u=(u+88)/270, and
 v=(v+134)/270. This results in ranges L~[0,.37], u~[0,1], and v~[0,.89].
 Perceptual uniformity is maintained since divisor is constant
 (normalizing each color channel independently would break uniformity).
 To undo the normalization on an LUV image J use:
   J=J*270; J(:,:,2)=J(:,:,2)-88; J(:,:,3)=J(:,:,3)-134;
 To test the range of the colorSpace use:
   R=100; I=zeros(R^3,1,3); k=1; R=linspac