Creates a Quartz 2D image from a region of a Core Image image object.
- iOS 5.0+
- macOS 10.4+
- tvOS 9.0+
- Core Image
A Core Image image object.
The region of the image to render.
A Quartz 2D image. You are responsible for releasing the returned image when you no longer need it.
Renders a region of an image into a temporary buffer using the context, then creates and returns a Quartz 2D image with the results.