Remove "Titles And Alt Tags" in blog view

Hi there,

please be patient with me, I’m kind of new in wordpress ??

I’m using the nggallery plugin in version 1.9.13.
A while ago I installed the WordPress SEO in version 1.4.18 due to get more clicks in google, since you can’t really find my blog with google image search. I know that it may take a while before changes are replicated in google but you can’t find my blog almost at all.

I found out that one of the reasons might be that I don’t use the “Titles And Alt Tags” in ggallery, since I thought this is just kind of a title. But it seems like this is one essential thing for the google search and WordPress SEO uses this field to report the content to google.

To cut the long story short: I don’t won’t to see this field in my blog.
Is it possible to use it, so that google can use the content but it’s invisible underneath the picture?

This it how it looks like when I use this field:
https://bybasti.com/as-every-cat-owner-knows-nobody-owns-a-cat-ellen-perry-berkeley/

Normally it’s empty but it’s an old post, so I just used it for test purposes ;-).

Thanks a lot!