What is image_exact?
This is a simple utility module which extends image.module and user.module to allow admins to set exact sizes for image thumbnails from image.module, and for user avatars.
Many site designs look better if thumbs and avatars are all square, for instance, or at least always have the same aspect ratio. This module lets you have that by cropping images equally from all sides until the correct aspect ratio is reached, and then scaling.
Image_exact is designed to be a simple, lightweight solution for sites that just want exactly-sized avatars and/or images handled by image.module. If you're interested in dynamic image handling, we recommend the far more flexible and powerful imagecache.