PHImageRequestOptionsResizeMode.exact
Photos resizes the image to match the target size exactly.
Declaration
case exactDiscussion
Resizing to exactly match a target size is less efficient than using the fast resizing option. The system doesn’t resize low-quality or degraded images that PHImageRequestOptionsDeliveryMode.opportunistic or PHImageRequestOptionsDeliveryMode.highQualityFormat return.
You must choose this enumeration case if you use the normalizedCropRect property to request a cropped image.