Image manipulation webservice ("image manipulation as-a-Service")

I'm developing on the force.com platform (Apex code) and need to do some basic image manipulation (cropping and scaling). The platform does not (yet?) support image manipulation.

Therefore I think I am looking a "image manipulator as-a-service". Basically a hosted webservice that takes my image along with manipulation instructions and return a manipulated image.

Any recommendations for a reliable service that do开发者_Python百科es this. Alternatively suggestions to different approaches to the problem.

Thanks.

The only candidates I've been able to find are these:

• http://www.appspotimage.com/
• http://dsin.appspot.com/image

Both would probably require a serious evaluation before being used for production purposes, so my conclusion is that no good answer currently exists for this answer.

Setting up a the service for yourself or waiting for the IdeaExchange idea to become real are unfortunately well worth considering.