Solve a graphical problem about different logos with a script

[jimred73 at gmail.com]

Hi

I have to bring alot of diffrent company logos into a harmony with
each other.

Therefore I'm looking for a way to measure the relation between white
and colour.... so that i'm able to scale or shrink   the logo that at
the end, all logos have the same quotient and therefore have the same
optical weight.

The problem is: A squared Logo with a dark background looks heavier
then a wide one with just some black text. Therefore the squared one
has to be resized that it will match with the other.

Is something like this possible with a few lines of python and
imagemagick?

Regards

JIM