What is CoreImage?

Generated on 10/1/2024

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CoreImage is a powerful image processing framework provided by Apple that allows developers to perform complex image manipulations and enhancements. It is often used in conjunction with Metal for rendering and displaying images, especially when interactive changes to images are required. CoreImage supports various image formats, including HDR (High Dynamic Range) images, and provides APIs for reading, editing, and displaying these images efficiently.

In the context of HDR images, CoreImage can be used to apply filters and tone mapping to optimize the display of images according to the current display state. This involves using features like the tonemap headroom filter to ensure that HDR images are displayed with the appropriate dynamic range and visual quality.

For more detailed information on using CoreImage with HDR images, you can refer to the session titled "Use HDR for dynamic image experiences in your app" from WWDC 2024.