Protocols

The ImageCache protocol defines a set of APIs for adding, removing and fetching images from a cache.

The ImageRequestCache protocol extends the ImageCache protocol by adding methods for adding, removing and fetching images from a cache given an URLRequest and additional identifier.

The ImageFilter protocol defines properties for filtering an image as well as identification of the filter.

The Sizable protocol defines a size property intended for use with ImageFilter types.

The Roundable protocol defines a radius property intended for use with ImageFilter types.

The CompositeImageFilter protocol defines an additional filters property to support multiple composite filters.

The CoreImageFilter protocol defines parameters, filterName properties used by CoreImage.