# vImageCVImageFormat_GetColorSpace(_:) Returns the color space of a Core Video image format. ``` func vImageCVImageFormat_GetColorSpace(_ format: vImageConstCVImageFormat) -> Unmanaged! ``` ## Parameters `format` The Core Video image format to query. ## Return Value The color space of the specified image format. ## Discussion For RGB, indexed, and grayscale images, the color space of a Core Video image format describes the image encoding. For YpCbCr images, the color space describes the image encoding of the RGB image that’s the result of unapplying the RGB-to-YpCbCr conversion matrix. The functions that create Core Video image formats, such as [`vImageCVImageFormat_CreateWithCVPixelBuffer(_:)`](/documentation/Accelerate/vImageCVImageFormat_CreateWithCVPixelBuffer(_:)), return a [`vImageCVImageFormat`](/documentation/Accelerate/vImageCVImageFormat). The following code shows how you create a [`vImageConstCVImageFormat`](/documentation/Accelerate/vImageConstCVImageFormat) representation of a [`vImageCVImageFormat`](/documentation/Accelerate/vImageCVImageFormat) instance to pass to [`vImageCVImageFormat_GetColorSpace(_:)`](/documentation/Accelerate/vImageCVImageFormat_GetColorSpace(_:)): ```swift let colorSpace = withUnsafeBytes(of: cvImageFormat) { bytes in let format = bytes.assumingMemoryBound( to: vImageConstCVImageFormat.self).first! return vImageCVImageFormat_GetColorSpace(format) } ``` ## See Also [`colorSpace`](/documentation/Accelerate/vImageCVImageFormat/colorSpace) The color space of the Core Video image format. --- 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)