Returns a new image created by dividing the image’s RGB values by its alpha values.
- iOS 10.0+
- macOS 10.12+
- Mac Catalyst 13.0+
- tvOS 10.0+
- Core Image
An image object representing the result of the operation.
Premultiplied alpha speeds up the rendering of images, but some custom filter routines can be expressed more efficiently with non-premultiplied RGB values. Use this method if you need to apply such a filter to an image that has premultiplied alpha.