在iOS中使用Swift导出16位图像

import UIKit
import CoreGraphics

func exportImageAs16Bit(image: UIImage, outputPath: String) {
    guard let cgImage = image.cgImage else {
        print("Failed to get CGImage from UIImage.")
        return
    }
    
    let options = [
        kCGImageDestinationLossyCompressionQuality as String: 1.0 // 设置图像压缩质量为最佳，可根据实际需要调整
    ]
    
    guard let destination = CGImageDestinationCreateWithURL(URL(fileURLWithPath: outputPath) as CFURL, kUTTypePNG, 1, options as CFDictionary) else {
        print("Failed to create CGImageDestination.")
        return
    }
    
    let properties = [
        kCGImagePropertyDepth: 16, // 设置像素格式为16位
        kCGImagePropertyPixelFormat: kCGImagePixelFormat16BitRGB, // 设置像素格式为16位RGB
    ] as CFDictionary
    
    CGImageDestinationAddImage(destination, cgImage, properties)
    
    if !CGImageDestinationFinalize(destination) {
        print("Failed to export image as 16-bit.")
    }
}

// 示例用法
if let image = UIImage(named: "example.png") {
    exportImageAs16Bit(image: image, outputPath: "output.png")
}