UIBarButtonItem *doneitem=[[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(donePressed:)]autorelease];
In Swift
Other solution using withRenderingMode(UIImage.RenderingMode.alwaysOriginal) method below:
let img = UIImage(named: "picture")!.withRenderingMode(UIImage.RenderingMode.alwaysOriginal)
let leftBarButtonItem = UIBarButtonItem(image: img, style: UIBarButtonItem.Style.plain, target: self, action: nil)
self.navigationItem.leftBarButtonItem = leftBarButtonItem