LWille

The php5-gd library on some Debian hosts doesn’t include imagerotate() due to memory leaks.
If you notice that rotating images does not work in the image editor, just install this plugin to supply an alternative imagerotate() function.

ImageRotate

Alternative implementation of GD's imagerotate() function.

Nicolas Juen

This plugin allow create custom image sizes for your site. Override your theme sizes directly on the media option page. 
You can regenerate all the sizes you have just created and choose which one you wanted to regenerate. 
You can now get all the code to copy and paste to your function theme file. 
Now you can use the generated sizes directly into your posts and insert images at the right size ! 
Now you choose if you want display the size in the post insert image. 
Now you can regenerate the images one by one in the ‘Medias’ general pane. 
Now you can regenerate the images by bulk action in the ‘Medias’ general pane. 
Now you can regenerate the image sizes on single attachment edit page.
I have added a timer so when you regeneration your thumbnails, you can know approximately when the regeneration will be ended. 
I have improved the php and javascript, you can know if the image have been regenerated or not or if there is an error and which one.
Contribute on https://github.com/Rahe/Simple-image-sizes

Simple Image Sizes

Donate link: http://www.beapi.fr/donate/ Tags: images, image, custom sizes, custom images, thumbnail regenerate, thumbnail, regenerate, cropping Requi …

ImageRotate vs Simple Image Sizes