Alex Mills

<p>By default, WordPress uses the center of an image when creating cropped thumbnails. SmartCrop attempts to find and use the most interesting part of an image and centers the cropping on that portion of the image.</p>
<p>This process is entirely automatic and cannot be manually controlled. There are other plugins out there if you wish to manually specify where you want thumbnails to be cropped.</p>
<p>Since this analysis process can be slow on large images, thumbnails are initially center cropped and later asynchronously regenerated to be smartly cropped. This avoids the uploading of new images from being slow. The one side effect of this however is that your browser may load and cache the centered thumbnail before it’s re-cropped.</p>
<p>Want to smartly crop your past image uploads? You can use my <a href="https://wordpress.org/plugins/regenerate-thumbnails/" rel="ugc">Regenerate Thumbnails</a> plugin to trigger that. Make sure to uncheck skipping existing thumbnails.</p>
<h4>Need Help? Found A Bug? Want To Contribute Code?</h4>
<p>Support for this plugin is provided via the <a href="https://wordpress.org/support/plugin/smartcrop" rel="ugc">WordPress.org forums</a>.</p>
<p>The source code for this plugin is available on <a href="https://github.com/Viper007Bond/smartcrop" rel="nofollow ugc">GitHub</a>.</p>


SmartCrop

Instead of cropping to the center of an image, SmartCrop attempts to use the most interesting part of the image for the thumbnail.

Tomasz Sita

<p>Plugin allows you to manually crop all the image sizes registered in your WordPress theme (in particular featured image).<br />
Simply click on the “Crop” link next to any image in your media library.<br />
The WordPress Media Modal interface will be brought up and you are ready to go.<br />
Whole cropping process is really intuitive and simple.</p>
<p>Apart from media library list, the plugin adds links in few more places:<br />
* Below featured image box (“Crop featured image”)<br />
* In the media insert modal window (once you select an image)</p>
<h4>Settings</h4>
<p>The plugin includes a settings page where you can configure:<br />
* Image quality settings<br />
* Visibility of crop options<br />
* Custom labels for image sizes</p>
<h4>GitHub Repository</h4>
<p>https://github.com/tomaszsita/wp-manual-image-crop</p>
<h4>Translations</h4>
<ul>
<li>Czech (AI Generated)</li>
<li>Dutch (Bernardo Hulsman)</li>
<li>French (Gabriel Féron)</li>
<li>German (Bertram Greenhough)</li>
<li>Hungarian (Roland Kal)</li>
<li>Italian (Alessandro Curci)</li>
<li>Japanese (AI Generated)</li>
<li>Korean (AI Generated)</li>
<li>Polish (myself)</li>
<li>Portuguese (Brazil) (AI Generated)</li>
<li>Russian (Andrey Hohlov)</li>
<li>Spanish (Andrew Kurtis)</li>
<li>Swedish (Karl Oskar Mattsson)</li>
<li>Turkish (AI Generated)</li>
</ul>
<p>Please contact me if you want to add a translation (or submit a pull request on GitHub)</p>


Manual Image Crop

Doesn't seem to work with add_image_size when used with a child theme's function.php using code like below:
/*---------------------------------------------*/
/* ADD CUSTOM IMAGE SIZES
/*---------------------------------------------*/

if ( function_exists( 'add_image_size' ) ) {
	add_image_size( 'facebook-image-page', 470, 470 );
}

add_filter( 'image_size_names_choose', 'insert_custom_image_sizes' );
function insert_custom_image_sizes( $sizes ) {
	global $_wp_additional_image_sizes;
	if ( empty($_wp_additional_image_sizes) )
		return $sizes;

	foreach ( $_wp_additional_image_sizes as $id => $data ) {
		if ( !isset($sizes[$id]) )
			$sizes[$id] = ucfirst( str_replace( '-', ' ', $id ) );
	}

	return $sizes;
}


Doesn't seem to work with

Support for this plug-in is very bad and it contains a few bugs. No response after a month..

Abandoned

Plugin allows you to manually crop all the image sizes registered in your WordPress theme (in particular featured image).

SmartCrop vs Manual Image Crop