Global Variable


An option specifying whether to return feature information for components of detected features.


let CIDetectorReturnSubFeatures: String


The value of this key is an NSNumber object with a Boolean value. Use this option with the CIDetectorTypeText detector type to choose whether to detect only regions likely to contain text (false, the default) or to also identify sub-regions likely to contain individual characters of text (true).

Beta Software

This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.

Learn more about using Apple's beta software