How to convert image to binary in Swift

Question

I created an app to take an image and convert this image to binary and send to server. I take the image but I can't convert it.

I use this code :

func cameraa(){
    let picker = UIImagePickerController()
    picker.delegate = self
    picker.sourceType = .Camera
    presentViewController(picker, animated: true, completion: nil)
}


func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
    ImageDisplay.image = info[UIImagePickerControllerOriginalImage] as? UIImage;dismissViewControllerAnimated(true, completion: nil)
}



@IBAction func Encode(sender: UIButton) {

    var imageEncode = ImageDisplay.image

    let image : UIImage = UIImage(imageEncode)
    let imageData = UIImagePNGRepresentation(image)

    print(imageData)

My error in parse image(imageEncode) to (let image : UIImage = UIImage(imageEncode))

imageData is already a binary representation of your image. What is your problem? — Hermann Klecker
– Hermann Klecker, Commented Nov 11, 2015 at 9:33

t4nhpt · Accepted Answer · 2015-11-11 09:26:35Z

6

The ImageDisplay.image is already a UIImage. So you needn't to convert it to UIImage again. Just do that:

let imageData = UIImagePNGRepresentation(ImageDisplay.image)

print(imageData)

answered Nov 11, 2015 at 9:26

t4nhpt

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2 Comments

Dimple Over a year ago

let imgTest = UIImage.init(named: "logo.png") let imageData = imgTest!.pngData() Latest Code

Dilip Agheda Over a year ago

let img = UIImage(named: "response") let data = img?.pngData() worked for me! just to share.

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