pey22

This simple plugin shows a large size image in the page and below a scrollable row of thumbnails without scrollbar. You can scroll the thumbs while mouseover or mouseclick and choose an image for the big view. 
you can also add each image a short description that displaying on the big image (the description is the images alt). 
you can display slider from another post/page by passing his ID to the short code [tp_gallery post_id=”id”]. 
also there is a setting page with beautiful preview box.
<ul>
<li>New!!! from T&P plugins: <a href="https://wordpress.org/plugins/tp-navigation-menu" rel="ugc">T&P Navigation Menu</a> – sticky navigation menu when scroll down the page.</li>
</ul>
<h3>Create Images</h3>
You need all images of your gallery in the same size and have to upload them in the same aspect ratio. 
1. The size of the big image is the size of the first in the gallery. You should have all images in the gallery in the same width and heigth to avoid scaling. 
2. When putting the mouse over the big image will change.

T&P Gallery Slider

T&P Gallery Slider for WordPress is an image hover/click gallery as a WordPress plugin.

Stefano Lissa

Comment Image enables blog readers to attach an image while leaving their comments. 
Supported formats are JPG, PNG, GIF.
Uploaded images are inserted below the comment text as thumbnail (of configurable max dimensions) and linked to the original pictures.
File selection field can be injected automatically or added manually.
Original pictures and their thumbnails are stored in a separate folder for easy management.
See the official <a href="http://www.satollo.net/plugins/comment-image" rel="nofollow ugc">Comment Image</a> page for more.
Other plugins by Stefano Lissa:
<ul>
<li><a href="https://www.satollo.net/plugins/hyper-cache" rel="nofollow ugc">Hyper Cache</a></li>
<li><a href="https://www.thenewsletterplugin.com" rel="nofollow ugc">Newsletter</a></li>
<li><a href="https://www.satollo.net/plugins/header-footer" rel="nofollow ugc">Header and Footer</a></li>
<li><a href="https://www.satollo.net/plugins/thumbnails" rel="nofollow ugc">Thumbnails</a></li>
<li><a href="http://www.satollo.net/plugins/include-me" rel="nofollow ugc">Include Me</a></li>
</ul>

Comment Image

Enable readers to attach an image to their comments.

T&P Gallery Slider vs Comment Image