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Project 13 - converting flips the image.

Forums > 100 Days of SwiftUI

Hi everyone, I've hit a roadblock in my project 13 when playing around with new topics, when I select the image using the PhotosPicker it shows up just fine:

    func loadImage() {
        Task {
            do {
                guard let imageData = try await selectedItem?.loadTransferable(type: Data.self) else { return }
                guard let inputUiImage = UIImage(data: imageData) else { return }
                inputTestUIImage = inputUiImage
                image = Image(uiImage: inputUiImage) // gets displayed in a view just right
                ciImage = CIImage(image: inputUiImage)
            } catch {
                print(error)
            }
        }
    }

I've stripped down the processing code and just left the conversion, but basically when I run processImage(), it flips an iPhone photo randomly:

    func processImage() {
        ciImage = CIImage(image: inputTestUIImage!)
        guard let cgImage = CIContext().createCGImage(ciImage!, from: ciImage!.extent) else { return }
        let outputUiImage = UIImage(cgImage: cgImage)
        let imageOutput = Image(uiImage: outputUiImage)
        image = imageOutput
    }
}

(Don't mind force unwrapping, it's my testing code.)

You can see it clear when using that flower photo captured on the iPhone X in simulator:

(Click here if the image doesn't show up)

Any thoughts and help would be appreciated!

2      

You can set the orientation for it to be the right way round. UIImage does some weird stuff when processing. Something like this:

       let outputImage = UIImage(cgImage: CGImage, scale: inputImage.scale, orientation: inputImage.imageOrientation)
       image = Image(uiImage: outputImage)

2      

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