Ondrej Donek

Main features:
<ul>
<li>enable simple building of image galleries (it not uses built in media support). Is targeted for sites where is <a href="https://wordpress.org/" title="Your favorite software" rel="ugc">WordPress</a> used as a CMS</li>
<li>contains two widgets, one with the list of available galleries and second with images from the selected (or latest) gallery. This widget could be used on the main page of the site</li>
<li>you can create galleries by two ways: using upload wizard or your favourite FTP client. If you are using the plugin upload wizard images are automatically resized.</li>
<li>offers English and Czech locales</li>
</ul>

odPhotogalleryPlugin

Plugin for creating image galleries and publishing them with your posts.

mitchmccoy

NextGEN Image Cropper uses the jQuery jCrop plugin(included) to allow a user to crop an image within a NextGen gallery. 
Using NextGen Gallery libraries, a backup of the original image is made and the image is cropped based on selected dimensions and saved. 
The NextGen image meta data is also updated with the new image dimensions.

NextGEN Image Cropper

NextGEN Image Cropper extends the NextGen Gallery plugin to allow cropping of images.

odPhotogalleryPlugin vs NextGEN Image Cropper