David Pich AIOSYM
palmerc
/ imageRoundtrip.swift
Last active
April 15, 2024 03:35
Roundtrip a UIImage to its raw pixel values and back to an image again
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import UIKit | |
| import CoreGraphics | |
| func imageFromPixelValues(pixelValues: [UInt8]?, width: Int, height: Int) -> CGImage? | |
| { | |
| var imageRef: CGImage? | |
| if pixelValues != nil { | |
| let imageDataPointer = UnsafeMutablePointer<UInt8>(pixelValues!) | |
| let colorSpaceRef = CGColorSpaceCreateDeviceGray() |