import CoreImage
import UIKit

func applyAffineTransform(to image: UIImage, with angle: CGFloat, and scale: CGFloat) -> UIImage? {
    guard let cgImage = image.cgImage else { return nil }
    
    let ciImage = CIImage(cgImage: cgImage)
    
    let transformation = CGAffineTransform(translationX: ciImage.extent.width / 2, y: ciImage.extent.height / 2)
        .rotated(by: angle)
        .scaledBy(x: scale, y: scale)
        .translatedBy(x: -ciImage.extent.width / 2, y: -ciImage.extent.height / 2)
    
    let transformedImage = ciImage.transformed(by: transformation)
    
    let context = CIContext(options: nil)
    if let outputCGImage = context.createCGImage(transformedImage, from: transformedImage.extent) {
        return UIImage(cgImage: outputCGImage)
    }
    
    return nil
}

let inputImage = UIImage(named: "inputImage.jpg")!

if let outputImage = applyAffineTransform(to: inputImage, with: .pi/4, and: 1.5) {
    // 사용할 수 있는 회전된 이미지(outputImage)
}