Merge Two Image on to one Image programmatically in iphone

Question

Hello I am developing the application which requires to merge two Image , My image size are 320*240 by merging both Image I want the size to be 320 * 480 . How can i do this

Answer 1

//ADDED Swift 3.2 and 4.0

@IBOutlet weak var imgCamera1: UIImageView!
@IBOutlet weak var imgCamera2: UIImageView!

    let image1 = imgCamera1.image
    let image2 = imgCamera2.image

    let size = CGSize(width: image1?.size.width ?? 0.0, height: (image1?.size.height)! + (image2?.size.height)!)
    UIGraphicsBeginImageContext(size)
    image1?.draw(in: CGRect(x: 0, y: 0, width: size.width, height: image1?.size.height ?? 0.0))
    image2?.draw(in: CGRect(x: 0, y: image1?.size.height ?? 0.0, width: size.width, height: image2?.size.height ?? 0.0))

    let finalImage = UIGraphicsGetImageFromCurrentImageContext();

    UIGraphicsEndImageContext();


    //Add image to view
    let imageView = UIImageView(frame: CGRect(x: 0, y: 0, width: finalImage?.size.width ?? 0.0, height: finalImage?.size.height ?? 0.0))
    imageView.image = finalImage

    //Displaying Image
   // view.addSubview(imageView)