Cropping tool/script for PHP/Javascript

I am looking for a decent image cropping solution, ideally a script that would do the following :

Allow to upload an image (ideally via ajax), crop the image using some jQuery like cropping tool and then save the 'new' cropped image while retaining开发者_StackOverflow中文版 the image untouched.

Is there anything people could recommend?

Use Pixastic for client-side image processing.

Edit

It sounds like you might be looking for an image crop GUI for users, rather than a way to programmatically crop images (as I read your question originally). In that case, there are a variety of jQuery plugins that provide this; jrac seems to be a reasonably up-to-date one.

you can check here it is good tool

http://deepliquid.com/content/Jcrop_Download.html