TYPO3 is an enterprise class Web CMS written in PHP/MySQL. It's designed to be extended with custom written backend modules and frontend libraries for special functionality.
It has very powerful integration of image manipulation.
How to say it politely. Well I would rather stay with Wordpress.
Brilliant CMS once you get it, but getting it is a problem. By far the biggest obstacle to adoption is the documentation, when it's there it's old and outdated, not to mention cryptic at best and when it's not there, well...... I would recommend for anyone trying this out for the first time read the typo3 templates book by Joshua Greewalt (hope I got the name right) that helps a lot, don't bother with the tutorial from the official site as it is <surprise surprise> outdated. I'm giving it a thumbs down (would prefer a halfway raised thumb) because it is so badly let down by documentation (core and majority of the extensions) that it wipes out/neutralises a lot of the positive aspects of this brilliant software, but that hasn't stopped me using it nor will it.
Badly documented, unintuitive, outdated