Header- insert picture- wrap-background

If I have a inserted pic in the header, and then want to type some text in there with a wrap-background,

if the pic is moved left or right

How do I achieve that the text is centered in the middle of the pic, by MOVING LETTERS , NOT THE PIC!

I tried with tabs up left, and I achieve left-right position, but not up-dovn position!
Please, can someone help?
Many thanks!

Wrap option for picture must be “Through”