SplitMirror filter with UIGraphics applied on UIImage

SplitMirror.swift

//
//  SplitMirror filter.swift
//  Image Editor
// 
//  Created by Coder ACJHP on 25.02.2022.
// 
// SnapChat & Tiktok & Motion App like image filter
// Inspired from 'https://support.apple.com/tr-tr/guide/motion/motn169f94ea/mac'
// Splits an image in half vertically and reverses the left remaining half to create a reflection.

    final func splitMirrorFilter(processingImage image: UIImage) -> UIImage {
        // Image size
        let imageSize = image.size

        // Left half
        let leftHalfRect = CGRect(
            origin: .zero,
            size: CGSize(
                    width: imageSize.width/2,
                    height: imageSize.height
                    )
        )
        
        // Right half
        let rightHalfRect = CGRect(
            origin: CGPoint(
                x: imageSize.width - (imageSize.width/2).rounded(),
                y: 0
            ),
            size: CGSize(
                width: imageSize.width - (imageSize.width/2).rounded(),
                height: imageSize.height
            )
        )
        // Split image into two parts
        guard let cgRightHalf = image.cgImage?.cropping(to: rightHalfRect) else { return image }
        // Flip right side to be used as left side
        let flippedLeft = UIImage(cgImage: cgRightHalf, scale: image.scale, orientation: .upMirrored)
        let unFlippedRight = UIImage(cgImage: cgRightHalf, scale: image.scale, orientation: image.imageOrientation)
        
        UIGraphicsBeginImageContextWithOptions(imageSize, false, image.scale)
        
        flippedLeft.draw(at: leftHalfRect.origin)
        unFlippedRight.draw(at: rightHalfRect.origin)
        
        guard let splitMirroredImage = UIGraphicsGetImageFromCurrentImageContext() else { return image }
        UIGraphicsEndImageContext()
        return splitMirroredImage
    }

Now I'll create this filter via using Core Image to reduce memory usage and improve performance

final func splitMirrorFilterCIImageVersion(processingImage image: UIImage) -> CIImage? {
        
        guard let ciImageCopy = CIImage(image: image) else { return image.ciImage }
        
        // Image size
        let imageSize = ciImageCopy.extent.size
        
        // Right half
        let rightHalfRect = CGRect(
            origin: CGPoint(
                x: imageSize.width - (imageSize.width/2).rounded(),
                y: 0
            ),
            size: CGSize(
                width: imageSize.width - (imageSize.width/2).rounded(),
                height: imageSize.height
            )
        )
                
        // Split image into two parts
        let ciRightHalf = ciImageCopy.cropped(to: rightHalfRect)
        // Make transform to move right part to left
        let transform = CGAffineTransform(translationX: -rightHalfRect.size.width, y: -rightHalfRect.origin.y)
        // Create left part and apply transform then flip it
        let ciLeftHalf = ciRightHalf.transformed(by: transform).oriented(.upMirrored)
                
        // Merge two images into one
        return ciLeftHalf.composited(over: ciRightHalf)
   }