But what about this:
map Sea of Japan - Yokohama (normal)
map Sea of Japan - Yokohama (brightness+contrast manipulated with photoshop)
map Northsea - Jadebusen Wilhelmshaven (normal)
map Northsea - Jadebusen Wilhelmshaven (brightness+contrast manipulated with photoshop)
The manipulation is only to make it better visible online. Check out for yourself. I'm shure you have allready set up
your .gamma in dw.ini. Of course.