image IO 图像处理
Generated on 3/5/2025
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It seems you're interested in image processing, specifically related to Image IO and HDR. At WWDC 2024, Apple presented a session titled "Use HDR for dynamic image experiences in your app," which covers various aspects of handling HDR images, including reading, editing, displaying, and saving them.
In this session, they discussed how to use Image IO to save an SDR CG image and gain map data. The process involves calling cgimagedestination addimage with an SDR CG image and creating a dictionary to describe the gain map. This is part of a broader discussion on how to handle adaptive HDR files, which can be loaded as either SDR or HDR images depending on the desired fidelity and compatibility.
For more detailed information, you can refer to the session Use HDR for dynamic image experiences in your app (18:24) where they discuss reading HDR images, and Use HDR for dynamic image experiences in your app (31:37) for saving images.
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