healdev

The most integrated, flexible and efficient solution available to reduce image file sizes and improve SEO & performance while preserving/improving image quality.
Use this plugin if you’re tired of loosing image quality every time WordPress generates alternative image sizes and disappointed in all these image optimization plugins that do a great job at compressing but nothing about the quality loss…
REQUIRES -> PHP 5.6 OR GREATER + Imagick 2.2.0 OR GREATER
<h4>Features</h4>
Dashboard -> Settings -> Media
<ul>
<li>Adjust the image compression rate.</li>
<li>Apply a light blur/sharpening filter to compensate for the quality loss occurring when WordPress resizes images.</li>
<li>Set the image interlace scheme (progressive|interlaced|preserve original)</li>
<li>Optimize of the original images.</li>
<li>Remove the meta/exif data to reduce image file size (orientation exif data is preserved)</li>
<li>List of all image sizes added by the current theme and plugins.</li>
<li>Convert non-transparent PNG images to JPEG.</li>
</ul>
Dashboard -> Media
<ul>
<li>Adds a new “Optimization” column to the media upload page</li>
<li>Provides information about the image sizes and optimization applied</li>
</ul>
LET ME KNOW YOUR IMPROVEMENT SUGGESTIONS – TOGETHER WE CAN MAKE THIS PLUGIN BETTER!
<h4>Developers</h4>
You’ll love this plugin for its advanced configuration options, hooks, seamless integration, performance and smart blur & sharpen feature!

Ultimate Image Optimization Helpers

Optimize your images the right way—maintain the quality of your resized images.

niwreg

HansVanEijsden

Tired of having blurry lifeless WordPress images? This plugin sharpens resized JPG image uploads and it works with ImageMagick so it keeps quality, EXIF information and color profiles. It also maintains the crops and other image proportions.
Bonus: It enables you to have automatic contrast leveling too.
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ImageMagick Sharpen Resized Images

The default resizing method of WordPress (which is the GD library I believe) produced strange artifacts. Switching to ImageMagick totally solved the issue.

A real life saver!

This Plugin is fantastic! Such a shame that the imagick library is so rare in shared hosting. Just installed everything on my XAMPP and your Plugin did a fantastic job. Thanks a bunch for this masterpeace. 

Great Job

Improve your images: Sharpens resized JPG image uploads via ImageMagick so it keeps quality, EXIF information, color profiles and crops.

Ultimate Image Optimization Helpers vs ImageMagick Sharpen Resized Images