Convert UIimage (take a picture) to NSData

Question

I used this method to take a picture.

func convertImageFromCMSampleBufferRef(sampleBuffer:CMSampleBuffer) -> CIImage{
    let pixelBuffer:CVPixelBufferRef         


        

Answer 1

You must convert CIImage to a CGImage, then CGImage to an UIImage, and then UIImage to NSData.

static let context = CIContext(options:nil);
let tempImage:CGImageRef = context.createCGImage(ciImage, fromRect: ciImage.extent())
let image = UIImage(CGImage: tempImage);
let imageData: NSData? = UIImageJPEGRepresentation(image, 0.6);