Enumeration
VNImage Crop And Scale Option An enumeration of different ways Vision can crop and scale an input image.
SDKs
iOS 11.0+ macOS 10.13+ Mac Catalyst 13.0+ tvOS 11.0+ Declaration enum VNImageCropAndScaleOption : UInt
Overview Scaling an image ensures that the entire image fits into the algorithm's input image dimensions, which may require a change in aspect ratio. Each crop and scale option transforms the input image in a different way:
Topics
Crop and Scale Options case center Crop
A scaling option that maintains aspect ratio to fit the short side, and crops the centered image on its long side.
case scale Fit
An option that scales an image to fit the input image dimensions while maintaining aspect ratio.
case scale Fill
A scaling option that scales an image proportionally so that its shorter dimension fills the canvas, potentially cropping along the longer dimension.
See Also
Configuring Image Options