JS Morisset

Have you noticed that WordPress creates small images that are a bit “fuzzy” – nothing like the nice sharp original you uploaded?
After resizing an image, the image must be sharpened but WordPress doesn’t do any sharpening, so the resized image remains a bit “fuzzy” – not what you want for a featured image or shared image on social sites! The WPSSO Tune WP Image Editors (WPSSO TIE) add-on provides this missing WordPress image sharpened feature – it automatically applies sharpening to all JPEG images resized by the WordPress ImageMagick library.
Compatible with all image compression / optimization plugins:
Image sharpening is applied during the WordPress resize operation so the resulting images can still be optimized with any compression / optimization plugin.

<h3>WPSSO TIE Add-on Features</h3>
Extends the features of the <a href="https://wordpress.org/plugins/wpsso/" rel="ugc">WPSSO Core plugin</a> (required plugin).
Applies adjustments to resized images (aka thumbnails) using ImageMagick:
<ul>
<li>Enable or disable image adjustments / sharpening for resized images.</li>
<li>Uses a better compression quality of 92% (WordPress default is 82%).</li>
<li>Applies a default amount of sharpening values to all resized images.</li>
</ul>
Optionally select different primary / secondary image editor(s) for WordPress:
<ul>
<li>GD Only</li>
<li>GD and ImageMagick</li>
<li>ImageMagick Only</li>
<li>ImageMagick and GD (WordPress default)</li>
</ul>
Optionally fine-tune the image filter priority and image adjustment options:
<ul>
<li>Modify the default ‘image_make_intermediate_size’ filter hook priority.</li>
<li>Enable / disable contrast leveling.</li>
<li>Increase / decrease the compression quality percentage.</li>
<li>Adjust sharpening values individually (sigma, radius, amount, threshold).</li>
</ul>
<h3>WPSSO Core Required</h3>
WPSSO Tune WP Image Editors is an add-on for the <a href="https://wordpress.org/plugins/wpsso/" rel="ugc">WPSSO Core plugin</a>, which creates extensive and complete structured data to present your content at its best for social sites and search results – no matter how URLs are shared, reshared, messaged, posted, embedded, or crawled.

WPSSO Tune WP Image Editors

Improves the appearance of WordPress images for better click through rates from social and search sites.

Marko Heijnen

CodeKitchen

This plugin extend the power WordPress already have when it comes to image editing.
It currently focuses on the API side to give developers great tools to manipulate specific image sizes. 
You can do this by calling Improved_Image_Editor::register_image_size_info(). Here you can specify the following arguments: 
– quality 
– zoom 
– filters (work in progress)
It also includes the functionality of the following plugins I build: 
– Gmagick 
– Improved GD Image Editor 
– WP_Image (will be included soon)
Future plans are to build a settings page so users can select the settings per image size themself. 
I also have ideas to extend the current image editor UI with options to select the focus point per image size and build auto detection of the focus point. With every feature we add the main focus will be to build a decent API for it so at certain points it could be integrated in WordPress itself.

Improved Image Editor

Adds more image edit functionality to your WordPress installatin

WPSSO Tune WP Image Editors vs Improved Image Editor