はてなブックマーク

override func viewDidLoad() { super.viewDidLoad() viewImage.image = UIImage(named: "IMG_3368") let filteredImage = CIImage(image: self.viewImage.image!) let filter = CIFilter(name: "CIVignette") filter!.setValue(filteredImage, forKey: "inputImage") filter!.setValue(NSNumber(float: 9.0), forKey: "inputIntensity") let ciContext = CIContext(options: nil) let imageRef = ciContext.createCGImage((filter