Resize Image in iOS Swift

ImageResize.swift

// Courtesy: Hampton Catlin's gist.

// to resize an image to dimension 52x52
 
var newSize:CGSize = CGSize(width: 52,height: 52)
let rect = CGRectMake(0,0, newSize.width, newSize.height)
UIGraphicsBeginImageContextWithOptions(newSize, false, 1.0)
 
// image is a variable of type UIImage
image?.drawInRect(rect)
 
let newImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
 
// resized image is stored in constant newImage