[英]Create UIImage from CIImage on iOS 10
我试图为 iOS10 重建一个钛模块( https://github.com/Exygy/Titanium-Ti.Barcode )
重建时,我收到以下错误并且构建失败。
cannot initialize a variable of type 'UIImage *' with an rvalue of type
'CIImage *'
UIImage *image = [blob image];
^ ~~~~~~~~~~~~
以下是生成它的代码段:
id blob = [args valueForKey:@"image"];
ENSURE_TYPE(blob, TiBlob);
UIImage* image = [blob image];
我是 Objective C 的菜鸟。
您可以使用以下内容:
目标 C:
CIImage *ciImage = [blob image];
UIImage *uiImage = [[UIImage alloc] initWithCIImage:ciImage];
斯威夫特 4.0:
let ciImage: CIImage? = blob.image()
let uiImage = UIImage(ciImage: ciImage!)
斯威夫特 3.0
func convertCIImagetoUIimage(cmage:CIImage) -> UIImage {
let context:CIContext = CIContext.init(options: nil)
let cgImage:CGImage = context.createCGImage(cmage, from: cmage.extent)!
let image:UIImage = UIImage.init(cgImage: cgImage)
return image
}
试试这个方法:
CIContext *context = [CIContext contextWithOptions:nil];
CGImageRef cgImage = [context createCGImage:ciImage fromRect:[ciImage extent]];
UIImage* uiImage = [UIImage imageWithCGImage:cgImage];
CGImageRelease(cgImage);
CIImage 到 UIImage
斯威夫特 3.0
let uiImage = UIImage(CIImage: ciImage)
在 Swift 4.0
let ciImage: CIImage? = blob.image()
let uiImage = UIImage(ciImage: ciImage!)
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