Image rotating after CIFilter

Question

I\'m applying a CIFilter to a portrait image. For some reason, it gets rotated 90 clockwise. How can I fix this? My code is below

var imgOrientation = oImage         


        

Answer 1

You can try this :

let cgImage = self.context.createCGImage(filterOutputImage,
                                         from: cameraImage.extent)!

let orientation: UIImage.Orientation =
      currentCameraType == AVCaptureDevice.Position.front ?
           UIImage.Orientation.leftMirrored:
           UIImage.Orientation.right

let image = UIImage(cgImage: cgImage,
                    scale: 1.0,
                    orientation: orientation)

Answer 2

I'm going to guess that the problem is this line:

var newImage = UIImage(CIImage:outputImage, scale:imgScale, orientation:imgOrientation)

That is not how you render a filter into a UIImage. What you want to do is call CIContext(options: nil) to get a CIContext, and then send that CIContext the message createCGImage:fromRect: to get a CGImage. Now turn that CGImage into a UIImage, and, as you do so, you can apply your orientation.