Core Image Framework

The Core Image framework (CoreImage.framework) provides a powerful set of built-in filters for manipulating video and still images. You can use the built-in filters for everything from simple operations (like touching up and correcting photos) to more advanced operations (like face and feature detection). The advantage of using these filters is that they operate in a nondestructive manner so that your original images are never changed directly. In addition, Core Image takes advantage of the available CPU and GPU processing power to ensure that operations are fast and efficient. The CIImage class provides access to a standard set of filters that you can use to improve the quality of a photograph. To create other types of filters, you can create and configure a CIFilter object for the appropriate filter type.