IPhone SDK save/crop image as tiff?

Hi,
Can someone tell me if it is even possible to change the way the images are stored on iPhone or in the minimum return a cropped image in a different format (preferablt tiff) using the SDK classes?
In simple, all I am trying is, once the user selects an image, I want to be able to convert it to a tiff format?
Thanks,
Javid

Hi - I've found this post that might describe a similar (or same?) issue.
http://discussions.apple.com/thread.jspa?messageID=7936896&tstart=0
Hope that helps. You've gotten much farther than me - I'm still trying to figure out how to capture camera images using the SDK for a personal photo application. I couldn't find any mention of it in the UIImage Class Reference. Do you know where I might find docs on how to do it?
Thanks

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Hi - I've found this post that might describe a similar (or same?) issue.
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IPhone SDK save/crop image as tiff?

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