Corrections and supplementary note to “Information-theoretic distortion measures”

Several notational errors in the paper by Y.-T. Lee (see IEEE Trans. Signal Processing, vol.39, p.330-5, Feb. 1991) are corrected. The energy E_i, i=t, r defined in equation (2), when used in equations (6) and (9), should be changed to E_i=E*_i. Similarly, in equation (19), it should be changed to E_i=E˜_i. In addition, the following note will help clarify the above paper. The distortion measures defined in equations (3), (4), and (5) are "marginal" distances (distortions). The property of the marginal distortions is explained in more detail