在 iPhone / Objective-c 上读取/写入图像 XMP
我正在尝试从 iPhone 上的 jpeg 读取 XMP 信息。
我可以使用 ImageIO 轻松从 IPTC、TIFF 或 EXIF 获取标签，但不能使用 XMP。我对评级标签特别感兴趣。
有谁知道该怎么做？
I'm trying to read XMP information from a jpeg on iPhone.
I can get tags from IPTC, TIFF or EXIF easily using ImageIO but not XMP. I'm specially interested the rating tag.
Does anyone know how to do that?
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我自己也一直在尝试解决这个问题。根据我的发现，您似乎需要创建或查找自定义工具集来解析 XMP 数据。它以 XML 格式存储。 Adobe 有一个用于处理 XMP 数据的 SDK 和工具集，可以在此处找到。如果您检查一下XCode中SDK的编译指令有错误。 您可以在论坛上获得更正。
您还可以找到 adobe XMP 规范< a href="http://partners.adobe.com/public/developer/en/xmp/sdk/XMPspecation.pdf" rel="nofollow">此处的文档
我还没有深入了解我自己对这个话题还很陌生，但由于没有其他人在这里做出回应，我想我应该给你我在这个话题上所能挖掘到的一点点。
I've been trying to figure this out myself for a bit. Based on what I've found it looks like a you will need to create or find a custom toolset for parsing the XMP data. It is stored in an XML format. Adobe has an SDK and toolset for dealing with XMP data that can be found here. If you look into that there was an error in the compilation instructions for the SDK in XCode. You can get a correction here on there forums.
You can also find the adobe XMP specification documents here
I still haven't gotten very deep into the rabbit hole of this topic yet myself but since no one else was responding here I thought I'd give you what little I've been able to dig up on the topic.