how to store and fetch array of image from nsuserdefaults in swift?

i have the following code

this code is used to set the array in nsuserdefault

let data=NSKeyedArchiver.archivedDataWithRootObject(allCheckBoxList!)
        NSUserDefaults.standardUserDefaults().setObject(data, forKey: "Check_Box_Status")

this code is used to access the array but giving different values in array

let data=NSUserDefaults.standardUserDefaults().objectForKey("Check_Box_Status") as? NSData
        allCheckBoxList=NSKeyedUnarchiver.unarchiveObjectWithData(data!) as? [UIImage]