• Core Image and the GPU

• Filter Clients and Filter Creators

• The Processing Path

• Coordinate Spaces

• The Region of Interest

• Executable and Nonexecutable Filters

• Color Components and Premultiplied Alpha

• See Also

• Adding the Quartz Core Framework

• Loading Image Units

• Getting a List of Filters and Attributes

• Processing an Image

• Create a Core Image Context

• Get the Image to Process

• Create, Set Up, and Apply Filters

• Draw the Result

• Using Transition Effects

• Imaging Dynamical Systems

• Create and Initialize an Image Accumulator Object

• Set Up and Apply a Filter to the Image Accumulator

• Create a CIContext Object and Draw the Image

• Applying a Filter to Video

• Expressing Image Processing Operations in Core Image

• Creating a Custom Filter

• Write the Kernel Code

• Use Quartz Composer to Test the Kernel Routine

• Declare an Interface for the Filter

• Write an Init Method for the CIKernel Object

• Write a Custom Attributes Method

• Write an Output Image Method

• Register the Filter

• Write a Method to Create Instances of the Filter

• Using Your Own Custom Filter

• Supplying an ROI Function

• A Simple ROI Function

• An ROI Function for a Glass Distortion Filter

• An ROI Function for an Environment Map

• Specifying Sampler Order

• Writing Nonexecutable Filters

• Kernel Routine Examples

• Computing a Brightening Effect

• Computing a Multiply Effect

• Computing a Hole Distortion

• Before You Get Started

• Create an Image Unit Project in Xcode

• Customize the Load Method

• Add Your Filter Files to the Project

• Modify the Description Property List

• Build and Test the Image Unit

• See Also