wpcocktail

The Site Title Caption Modifier is a simple WordPress plugin that sets the caption of all images in your WordPress site to the site title. This is particularly useful for maintaining a consistent branding or style across all posts and pages. The plugin works by hooking into the WordPress ‘img_caption_shortcode’ filter and modifying the caption output.

Image Caption for WP

Automatically sets the caption of all images to your site's title.

Noor Alam

Home animation slider is nice image and text animation slider wordpress plugin. You can use this plugin any wordpress site for create slider.
Home animation slider is one of the most user friendly wordpress plugin.You can create unlimited animation slider with lots of options by Home animation slider slider.You can set new options for every slider.Home animation slider also support text animation. Home animation slider supports arrow button, text animation, button animation, Animation, Caption, hover caption and much more. 
<h4>Most powerful features: </h4>
<ul>
<li>Multiple image slider.</li>
<li>3 different animation style.</li>
<li>6 layer animation support.</li>
<li>Image caption support.</li>
<li>Animation button.</li>
<li>3 different image support every single slider .</li>
<li>Three different image size supports. </li>
<li>User-friendly Editor.</li>
<li>CSS3 Animation support.</li>
<li>Background change support.</li>
<li>Mousewheel support</li>
<li>Different position text animation.</li>
</ul>
<h4>Translations</h4>
<ul>
<li>English</li>
</ul>

Home animation slider

Home animation slider is nice image and text animation slider wordpress plugin. You can use this plugin any wordpress site for create slider.

Image Caption for WP vs Home animation slider