[Commons-l] Rotation bot/script

[Platonides]

Florian Straub wrote:
> Yesterday I saw Flickr's function "rotate image". This is really great, 
> especially for people with lower bandwidth. Could we do something like that, 
> too?
> 
> Idea 1: A tool that downloads the image, rotates it and uploads it either 
> under the username of the one who called it or by its own username.

I thought in doing that, but didn't make the code.
/me goes to do it.

> Idea 2: A bot which does that. You can call the bot by {{rotate|right}} or 
> {{rotate|left}}

We already have {{rotate}} I thought it already had a paramter saying 
how it should be rotated but seems it hasn't :-(



Imagemagick doesn't do lossless rotation.