# crop(at:destination:) Crops the pixel buffer to a rectangle that’s defined by an origin and the destination buffer’s dimensions. ``` func crop(at origin: CGPoint, destination: vImage.PixelBuffer) ``` ## Parameters `origin` A point that specifies the origin of the image to keep. `destination` The destination pixel buffer. ## Discussion For example, the following code populates a pixel buffer from the center 3 x 3 pixels of a 5 x 5 planar buffer: ```swift let src = vImage.PixelBuffer( pixelValues: [ 10, 11, 12, 13, 14, 20, 21, 22, 23, 24, 30, 31, 32, 33, 34, 40, 41, 42, 43, 44, 50, 51, 52, 53, 54 ], size: vImage.Size(width: 5, height: 5)) let dest = vImage.PixelBuffer( size: vImage.Size(width: 3, height: 3)) src.crop(at: CGPoint(x: 1, y: 1), destination: dest) // Prints: // [ 21, 22, 23, // 31, 32, 33, // 41, 42, 43 ] print(dest.array) ``` --- 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)