This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

ImageMagick Sharpen Resized Images

Description

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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Screenshots

  • It sharpens the crispy high frequency details and skin perfectly
  • Bye bye blurriness
  • Admin options

Installation

  1. Upload imagick-sharpen-resized-images.php to the /wp-content/plugins/ directory.
  2. Activate the plugin through the ‘Plugins’ menu in WordPress.
  3. In your WordPress Settings you’ll have a new admin entry: IM Sharpen Images.

Check https://codex.wordpress.org/Managing_Plugins#Installing_Plugins for more detailed installation instructions.

FAQ

Installation Instructions
  1. Upload imagick-sharpen-resized-images.php to the /wp-content/plugins/ directory.
  2. Activate the plugin through the ‘Plugins’ menu in WordPress.
  3. In your WordPress Settings you’ll have a new admin entry: IM Sharpen Images.

Check https://codex.wordpress.org/Managing_Plugins#Installing_Plugins for more detailed installation instructions.

Are there any system requirements?

Your host needs to have the imagick PHP module installed (and, of course, the ImageMagick program itself).
The imagick PHP module is NOT a WordPress plugin, but a module for PHP. The plugin has a built-in check for this imagick PHP module.

If you don’t have the imagick PHP module installed you can still sharpen your images by using the Sharpen Resized Images plugin. It sharpens the images by using lower quality GD, so it strips EXIF data and it strips color profiles.

I don’t see any sharpening, why?
  • After you enable the plugin it will only sharpen new uploads. If you want to sharpen your already uploaded images you will also need the Regenerate Thumbnails plugin.
  • Make sure to have not only the PHP module but also the ImageMagick software installed on the server (most servers have it though).
  • Still no differences? Clear your browser cache.
  • If you’re using Varnish cache or other server caches, empty them.
  • Sharpening only works with JPG files.
How can I adjust the amount of sharpening?

I defined the for me optimal amount of sharpening. You can change it though by going in your WordPress Admin Settings to the IM Sharpen Images entry. The default settings are fine though (Radius 0, Sigma 0.5, Amount 1, Threshold 0). I defaulted the threshold to 0 because personally I want to retain fine skin details in my photos. You can change it to 0.05 for noisy images if it sharpens noise too much.

How can I reset the plugin to the default values?

Just deactivate the plugin and (re)activate it. This will restore the default values.

Reviews

07 Aprily 2021
Works well out of the box. I am using it with Shortpixel and Regenerate Thumbnails Advanced, and the thumbnails now look super-clear, yet they are half the size of the original blurry images. This is a must for every product review website.
11 Aprily 2019
My photos looks awesome again thanks to this. You should look into the settings being reset, if the plugin was disabled. That's the only downside I can think of.
30 Aogositra 2018
Really sharpens image. Quality is not like into Photoshop, but default setting works pretty fine.
21 Aogositra 2018
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.
05 Jona 2018
Reseting values by reactivating plugin is very, VERY bad idea and I believe it's against all WordPress values and procedures. But to be honest it's very good plugin. After this review I have to go figure out all the values again.
04 Aprily 2018
Tired of having blurry lifeless WordPress images? This plugin is for you Work great with "Regenerate Thumbnails about 4500 pictures in 15 minutes i love your plugin
Read all 12 reviews

Contributors & Developers

“ImageMagick Sharpen Resized Images” is open source software. The following people have contributed to this plugin.

Contributors

Changelog

1.1.7

  • Little fight with svn and check.php wasn’t uploaded. So new version new changes

1.1.6

  • Fixed error in check.php

1.1.5

  • Added dynamic generated image to check if ImageMagick is installed and classes can be loaded

1.1.4

  • Some minor changes

1.1.3

  • The Automatic Contrast Leveling checkbox bug has been fixed (thanks niwreg!)

1.1.2

  • Fixed some rare errors while generating thumbnails and/or uploading images

1.1.1

  • Automatic Contrast Leveling has now really been enabled by default
  • Added a screenshot of the Settings page

1.1

  • Added an admin settings screen which lets you change all the options more easily (thanks niwreg!)
  • Added a check for the imagick PHP module installation
  • Automatic Contrast Leveling has now been enabled by default, you can change it in Settings

1.0

  • Initial release