# init(src:srcHeadroom:dst:dstHeadroom:toneMapping:options:_:) ``` init?(src source: CGColorSpace, srcHeadroom source_headroom: Float, dst target: CGColorSpace, dstHeadroom target_headroom: Float, toneMapping method: CGToneMapping, options: CFDictionary?, _ error: UnsafeMutablePointer?>?) ``` --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)