The 'SEO Optimized Images' WordPress plugin is designed explicitly to optimize the images on a WordPress website, maximizing its performance on Search Engine Result Pages (SERPs). This plugin operates by allowing you to seamlessly insert SEO-friendly alt and title attributes to images. An "Alt attribute" acts as an alternative textual description of an image when for some reason the image cannot be loaded or is being read by screen-reading tools. A "Title attribute", on the other hand, provides additional information about the image and often displays as a tooltip when a cursor hovers over the image. Both of these attributes are considered by search engines in their ranking algorithms and help in boosting the SEO score of the website.

The 'SEO Optimized Images' plugin doesn't permanently alter your images. It dynamically adds the alt and title tags without making changes to the database. This is advantageous as, if you deactivate the plugin in the future, your website will revert to the state it was in prior to the plugin activation.

Another impressive feature of this plugin is its flexibility in customizing attribute patterns. You can select distinct attributes for the images in your posts, pages, and even the thumbnails. This highly customizable feature ensures every image on your website is appropriately optimized.

Moreover, this SEO plugin provides a feature that enables the use of different variables in the title and alt tags. This feature enhances the relevance of the tags by allowing for image-specific, post-specific, or category-specific keywords to be included in the alt and title attributes.

In summary, while the purpose of the 'SEO Optimized Images' plugin is straightforward – to optimize images for SEO – its strategic utilization can significantly improve the visibility of a WordPress website, thus enhancing its outreach and performance.