Nick Halsey

This plugin creates a fullscreen slideshow that displays randomly-selected pictures from your media library. Designed to display pictures related to your business/organization in the background at an event or in your office, there is no need to configure any settings or controls. Image captions/descriptions are automatically displayed as well, and can be configured based on your needs.
Once activated, you can view the slideshow by visiting <code>http://yourdomain.com/slideshow</code>. All JPEG images will be displayed (since .jpg is best for pictures, while .png and .gif are typically used for graphics).
Please note that it is not currently possible to pause the slideshow or go back; the slideshow is not designed for personal viewing. However, clicking/tapping on the image will open its attachment page in a new tab, allowing images to be contextualized or edited easily.
The slideshow can also be embedded into your site via a widget or a shortcode.
You can control some options by adjusting the url of the slideshow. Parameters are controlled via query string (and widget options and shortcode attributes).
<ul>
<li><code>size</code> is the size of the image to load, either <code>thumbnail</code> (discouraged), <code>medium</code>, <code>large</code>, <code>full</code>, or <code>auto</code>, which uses medium or large depending on <code>wp_is_mobile()</code>.</li>
<li><code>year</code> is the 4-digit numeric year in which the images were published.</li>
<li><code>month</code> is the numeric month in which the images were published (between 1 and 12), typically but not necessarily used in conjunction with <code>year</code>.</li>
<li><code>mode</code> defines a subset of images to use, such as <code>featured</code> for featured images only.</li>
<li><code>captions</code> controls the captions display: either <code>auto</code>, <code>none</code>, <code>title</code>, <code>titlecaption</code>, <code>caption</code>, or <code>description</code>. Caption data is read from the image attachment post and can be updated in the media library.</li>
</ul>
Using all options, for example: 
http://example.com/slideshow?size=full&year=2014&month=4&mode=featured&captions=titlecaption
You can see it in action <a href="http://uscasce.com/slideshow" rel="nofollow ugc">here</a>.

Content Slideshow

This plugin creates a fullscreen slideshow that displays randomly-selected pictures from your media library. Designed to display pictures related to y …

Jeremy Felt

Automatic Featured Image Posts creates a new post with a Featured Image every time an image is uploaded. Through the plugin settings page, you can set the image to publish and assign itself to one of your other existing custom post types and/or post formats.
The imagined use case is to make managing a large number of photos through WordPress a little more interesting and a little more fun.
After uploading 10, 100, or 1000 pictures from an event or vacation, you and other users can go through and spend the majority of your time adding content, tags, and titles to your photographs rather than going through a monotonous process creating new posts over and over again.
Settings are available for:
<ul>
<li>Default Post Status (draft, pending, published, private)</li>
<li>Default Post Type
<ul>
<li>Default is the WordPress post.</li>
<li>Can choose any custom post type registered in your WordPress installation.</li>
</ul>
</li>
<li>Default Post Format
<ul>
<li>Default is ‘standard’, which equates to none.</li>
<li>Other options are provided if registered by your theme</li>
</ul>
</li>
</ul>
Filters are available for:
<ul>
<li><code>afip_new_post_title</code> = Allow other functions or themes to change the post title before creation.</li>
<li><code>afip_new_post_category</code> = Allow other functions or themes to change the post categories before creation.</li>
<li><code>afip_new_post_content</code> = Allow other functions or themes to change the post content before creation.</li>
<li><code>afip_new_post_date</code> = Allow other functions or themes to change the post date before creation.</li>
<li><code>afip_post_parent_continue</code> = Allow creation of a new post when an image is inserted in an existing post.</li>
<li><code>afip_continue_new_post</code> = Allow other functions or themes to skip creation of a post.</li>
</ul>
Actions are available for:
<ul>
<li><code>afip_pre_create_post</code> = Runs immediately before each post is created for an image.</li>
<li><code>afip_created_post</code> = Runs after each image load is processed.</li>
</ul>
Feel free to <a href="https://github.com/jeremyfelt/Automatic-Featured-Image-Posts" rel="nofollow ugc">fork, submit issues, and/or contribute on GitHub</a>

Automatic Featured Image Posts

One of those plugins which make my life a lot easier. Yes, it's rather specific, but for those who want to use wordpress as a photoblog it's great.

On request though, could you update the "tested up to" tag in the readme? Wordpress.org complains it's too long ago since something changed and it doesn't show up anymore in the search results for new plugins. As it works quite nice under 4.9.1, a minor update would solve this issue.

Thanks!

If you need it, you need it!

Automatic Featured Image Posts creates a new post with a Featured Image every time an image is uploaded.

Content Slideshow vs Automatic Featured Image Posts