Return a subimage from a UIImage

Question

I want to grab a subimage from a UIImage. I\'ve looked around for a similar question, to no avail.

I know the range of pixels I want to grab - how can I return th

Answer 1

Updated @donkim answer for swift 3:

    let fromRect=CGRect(x:0,y:0,width:320,height:480)
    let drawImage = image.cgImage!.cropping(to: fromRect)
    let bimage = UIImage(cgImage: drawImage!)