苹果在 iOS 27.2 为 iPhone AI 图像加入 SynthID 水印
iPhone AI Images and Edits Now Have a Hidden Watermark
iOS 27.2 中，Image Playground 生成的图像和部分经 Apple Intelligence 编辑的照片会嵌入 Google 的 SynthID 水印。SynthID 在像素层面标记 AI 生成内容，不影响画质，设计上可经受裁剪、滤镜和压缩。实测显示 Extend 和 Reframe 编辑后的图像带水印，Clean Up 小范围编辑未加水印、较大编辑才加；iPhone 上没有检测入口，需通过 SynthID Detector 网站查看。
正文
Images generated with Image Playground and some photos edited with Apple Intelligence will now include a SynthID watermark. Apple announced plans to add SynthID support back in June, and the feature is live in iOS 27.2.
SynthID is a Google-created tool that identifies AI-generated content. It watermarks images and videos at the pixel level instead of adding metadata. Google says it does not affect image quality and is meant to survive cropping, filters, and compression. SynthID is used by Google, Apple, OpenAI, and others.
There is no option on the iPhone for detecting SynthID watermarks, and to check for them, you need to use the SynthID Detector website.
When we tested the Photos app tools, images altered with Extend and Reframe had SynthID watermarks when checked, but Clean Up watermarking seemed to depend on the size of the edit. With small edits, no watermark was added. Larger Clean Up edits included a SynthID watermark.
Images created with Image Playground will all have the SynthID watermark. Related Roundups: iOS 27, iPadOS 27Related Forum: iOS 27