Core Image is a pixel-accurate, near-realtime, non-destructive image processing technology in Mac OS X. Implemented as part of the QuartzCore framework of Mac OS X 10.4 and later, Core Image provides a plugin-based architecture for applying filters and effects within the Quartz graphics rendering layer. The framework was later added to iOS in iOS 5.0 or later.
Read more about Core Image: Overview, History & Implementation, Pixel Accuracy, Supported Graphics Processors, Built-in Filters
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