I've been reading this article: http://aix1.uottawa.ca/~jkhoury/haar.htm which explains the Haar Wavelet Transform.
At a certain point, the author says:
... Since the transformation matrix $W$ is the product of three other matrices, one can normalize $W$ by normalizing each of the three matrices. The normalized version of $W$ is ...
and provides final matrix.
But he doesn't provide the exact procedure for matrix normalization he used. Probably someone with a deep understanding of the Haar Wavelet Transform can explain me, how matrices were normalized so that final result was obtained.
I've been searching the Internet for matrix normalization and couldn't find anything suitable. Also contacted author of article but didn't get any response so far.