Authority to rule the animals, but not to rule or have dominion over other humans.
Ruling over one another is not the image.
Genesis 1:27 is declarative.
So God created mankind in his own image,
in the image of God he created them;
male and female he created them.
Genesis 1:27 (NIV)
In Genesis 2, when God splits the woman from the man, the man marvels: “bone of my bones and flesh of my flesh; she is Isha (woman; literally ‘of man’), taken out of Ish (man).”
I think this must have echoed God’s heart in Genesis 1, making us from His image: “Spirit of my Spirit; Life of my Life; this is ha’Adam (the human), made in My Image.”
Adam says “She’s just like me!”
God says “They’re just like me!”
It sounds like adoration to me.