SEO-Friendly Responsive Slide Show?

I’m looking for a slideshow plugin that is responsive and can fill a space proportionally, but it also must be SEO friendly. All of the slides must have alt tags and be able to be indexed by Google Images. So, they can’t be background images. I was going to use Wunderslider but can’t get the alt tags working. Lots of options for slide navigation is a bonus; resizability is a MUST.
Thanks!