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Image Processing Queue

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Image Processing Queue

by WP Engine

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Description

Image Processing Queue is an alternative to on-the-fly (OTF) image processing (e.g. Aqua Resizer)
for WordPress themes.

Like OTF image processing, it allows theme developers to define image sizes for specific theme
contexts rather than defining a size for all uploaded images. This greatly reduces the number of
resized images and hence reduces disk space usage and the wait time when uploading an image.

Image Processing Queue differs from OTF image processing in how it behaves when an image doesn’t
exist yet. OTF generates the image right away and the end-user has to wait for the image to be
generated. With Image Processing Queue there’s no waiting. It immediately returns an image that
already exists (that is the closest fit to the image size requested) and adds the image size to
a queue. Image sizes are quietly generated in the background using WP Queue.

Image Processing Queue also accommodates responsive themes much better than OTF. It allows theme
developers to define a list of image sizes that will work best for their theme’s responsive
breakpoints. Images generated by Image Processing Queue are added to the post meta so that WordPress
core’s responsive functions will automatically add them to the srcset and delete them from the
filesystem when the image is deleted from the Media Library.

To install as a plugin search for “Image Processing Queue” in your WordPress dashboard and install it from there.

This should be in WP Core

By onetrev on May 4, 2020

It's crazy this exact functionality is not in core! These days many themes and custom built sites/themes have 10 to 15, or often many more crop sizes, especially if you are trying to support responsive images properly. But usually you only need 3 or 4 crop sizes for any given images. The functionality of this plugin would solve that, but it should be WP core to save everyone wasted storage space and to ensure future compatibility. To me it makes no sense for a cropped copy of the image to be created when that image is never loaded -- ever.

Very useful plugin

By medar on May 31, 2018

Thnks!

Awesome

By cunnningstunts on April 7, 2018

Make it core!

What a great solution

By Shaan Nicol (chillybin) on October 11, 2017

Have been using this now for a couple of months and it's improved my workflow significantly!

Awesome feature

By Erol Abzait (erolabzait) on September 29, 2017

I have been using aquaResize for a long time, this is a game changer. If you want only the url of the resized image use echo ipq_get_theme_image_url( $id_here, array( 600, 400, false ) );

Great Idea!

By Bernhard Gronau (quasel) on May 1, 2017

Real intresting approach and something that should be considered for WP Core - especially the Batch Processing Stuff isn#t only useful for images ...

Sounds great

By cerco on March 23, 2017

Seems to solve the hassle of adding to many image sizes (via add_image_size()) for a theme. Great stuff, hope it gets added to the WordPress core soon.

Brilliant solution to a HUGE problem in WP

By Patrick Whitty-Clarke (zerodegreeburn) on March 15, 2017

Keep up the good work, this is fantastic and could dramatically reduce WP install sizes. Knowing how many extra unused thumbnails were being generated but never used in my projects had been bugging me for a while.

This could be a game changer!

By Darren Cooney (dcooney) on March 10, 2017

It works! tbh, it took me a few minutes to fully understand how this library would benefit my workflow and my clients - but once I started to grasp the changes in development and how I wouldn't be running Regenerate Thumbnails every time I needed a new image size, it clicked! I think with some more detailed documentation and usage examples this could be a near perfect solution to the image size problem in many themes and plugins.

1.1.1

  • Bug fix: PHP Fatal error: Class ‘Image_Processing_Queue\Exception’ not found.

1.1.0

  • Improvement: Added ipq_job_attempts and ipq_cron_interval filters.

1.0.0

  • New: Uses WP Queue internally to process image jobs.
  • Bug fix: Multiple jobs for the same attachment created.

0.2

  • New: ipq_get_theme_image_url function added for returning a single image URL

0.1

  • First release
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