how to display big image in a small rect in ipad?

I'm doing my very first application for iPad. My problem is I'm having 1024*768 image. i want to keep that image in 10开发者_如何学Go0*100 imageview. But I'm getting the full size of the image .please any one help me.

Thank You Praveena

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You should look at the following thread UIImage: Resize, then Crop