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import UIKit//--- UIImageFilterExtension.swift ---extension UIImage{ //棕褐色复古滤镜（老照片效果） func sepiaTone() -> UIImage? { let imageData = UIImagePNGRepresentation(self) let inputImage = CoreImage.CIImage(data: imageData!) let context = CIContext(options:nil) let filter = CIFilter(name:"CISepiaTone") filter!.setValue(inputImage, forKey: kCIInputImageKey) filter!.setValue(0.8, forKey: "inputIntensity") if let outputImage = filter!.outputImage { let outImage = context.createCGImage(outputImage, fromRect: outputImage.extent) return UIImage(CGImage: outImage) } return nil }} |
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imageView1.image = UIImage(named:"img2.jpg")?.sepiaTone() |
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import UIKit//--- UIImageFilterExtension.swift ---extension UIImage{ //黑白效果滤镜 func noir() -> UIImage? { let imageData = UIImagePNGRepresentation(self) let inputImage = CoreImage.CIImage(data: imageData!) let context = CIContext(options:nil) let filter = CIFilter(name:"CIPhotoEffectNoir") filter!.setValue(inputImage, forKey: kCIInputImageKey) if let outputImage = filter!.outputImage { let outImage = context.createCGImage(outputImage, fromRect: outputImage.extent) return UIImage(CGImage: outImage) } return nil }} |
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imageView1.image = UIImage(named:"img2.jpg")?.noir() |
Swift - 给图片添加滤镜效果（棕褐色老照片滤镜，黑白滤镜）
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原文地址：http://www.cnblogs.com/Free-Thinker/p/4858382.html
