Zd. Wang et al., COMMENTS ON ON ASYMMETRICAL PERFORMANCE OF DISCRETE COSINE TRANSFORM, IEEE transactions on signal processing, 42(11), 1994, pp. 3262-3263
In this communication, we first show that the gain of transform coding
over PCM, the criterion for performance evaluation of a transform use
d in the above paper, is equivalent to the maximal-reducible-bit crite
rion defined by one author. Then we present a much simpler method to j
udge the symmetric or asymmetric performance of any discrete transform
.