Thread:Project:Support desk/Creating Large Wide Thumbnails

I'd like to set MediaWiki to create large thumbnails (say 700x300) to display as large 'splash' images at the top of each article.

This might replace the standard display of thumbnails (or create a 'thumb2' type). Thumbs would best be cropped in their centre at 700x300. If it had to be done when uploaded so be it, on the fly would be great. Is this an ImageMagik configuration?

Other thoughts: I'm sure the ideal might be doing this with CSS on the full size image, position where the crop appears within a div tag, but the majority of users will be using the Visual Editor and wouldn't be able to wrap an image. I'm going for simple.