Value of type UIImage has no member cgImageOrientation

Question

I am new coreml and I was reading a book I came across a code snippet and when I tried to run it I got the above error , I Googled but got no luck , here is my code

import UIKit
import Vision
extension UIImage {
    func detectFaces(completion:@escaping ([VNFaceObservation]?)->()){
        guard let image = self.cgImage else {
            completion(nil)
            return
        }
        let request = VNDetectFaceRectanglesRequest()
        DispatchQueue.global().async {
            let handler = VNImageRequestHandler(cgImage: image, orientation: self.cgImageOrientation)
            //above error here I think cgImageOrientation is no longer available but what's the solution anyways
        }
    }
}

here I am using swiftUI and lifecycle methods are also selected as swiftui , The book name is "Practical Artificial intelligence with swift" by orielly

It would be helpful for you to post the title and author of the book, and where in the book you found this code. — rob mayoff, Mar 20 '21 at 05:22
I have edited the post and mentioned the name of book also mentioned the photos @robmayoff — Yuvraj Agarkar, Mar 20 '21 at 05:38
Yes but that same tutorial also tells you how to declare cgImageOrientation. You did not follow directions. — matt, Mar 20 '21 at 06:22
I have read those page twice now but can you tell me where it is , @matt thank you — Yuvraj Agarkar, Mar 20 '21 at 06:25
It's in a later part. It's step 8 of creating `Views.swift`. — rob mayoff, Mar 20 '21 at 06:27
ooh got it , thank you @robmayoff , I didn't went that further reading because I was stuck in the first place , thank you though — Yuvraj Agarkar, Mar 20 '21 at 06:32

score 0 · Accepted Answer · answered Mar 20 '21 at 06:29

You need to continue working through the tutorial before you'll be able to compile it. The next section of the book talks about creating Views.swift, and step 8 of that section includes this extension:

extension UIImage {
    func fixOrientation() -> UIImage? {
        UIGraphicsBeginImageContext(self.size)
        self.draw(at: .zero)
        let newImage = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext()
        return newImage
    }

    var cgImageOrientation: CGImagePropertyOrientation {
        switch self.imageOrientation {
            case .up: return .up
            case .down: return .down
            case .left: return .left
            case .right: return .right
            case .upMirrored: return .upMirrored
            case .downMirrored: return .downMirrored
            case .leftMirrored: return .leftMirrored
            case .rightMirrored: return .rightMirrored
        }
    }
}

Value of type UIImage has no member cgImageOrientation

1 Answers1