The EasyImageCaption plugin for Joomla generates captions from images' TITLE or ALT tags in articles and displays them below (or above) the images.
As a Joomla plugin, EasyImageCaption works out-of-the-box. That means, you just have to install and activate it, and your images will automatically get “captionized” on front-end pages.
You may however restrict “captionizing” to certain images or certain articles through the plugin’s parameters.
The captions can be styled through your template's CSS file(s) or through the built-in basic style settings.
The generated source code is 100% valid HTML.
You can see the plugin working on this live page (Joomla 3.3 version, frontend only).
If you use EasyImageCaption, please post a rating and a review at the Joomla Extensions Directory.