如何将自定义元数据标签添加到iPhone上的图像? [英] How does one add custom metadata tags to an image on the iPhone?

问题描述

我尝试在自图像接收的词典中添加自定义条目.这没用.我假设这是因为exif是已经定义的标准.

I tried adding custom entries in the exif dictionaries I received from an image. This didn't work. I'm assuming this is due to the fact exif is a standard that is already defined.

基本上，我正在尝试创建一个元数据标签，该标签可以放置在没有字符限制的jpeg中.

Basically I am trying to create a metadata tag that can be placed in jpegs that will have no character limit.

我了解到XMP元数据标签没有字符限制.这是真的?如果是这样，我将如何在iPhone上创建它们?

I read that XMP metadata tags do not have character limits. Is this true? If so how would I create these on the iPhone?

谢谢.

推荐答案

我不确定您都尝试过哪种代码，但是

I'm not sure what you've all tried code wise, but Caffeinated Cocoa has a pretty good blog entry on Image Metadata that I've used in an application for a client a while ago that might help you.

此外，SO帖子问题为图像设置exif数据似乎引用了含咖啡因的可可.尽管这个问题已有一年多的历史了，但仍然可能会有所帮助.

Also, the SO post Problem setting exif data for an image looks like it references the Caffeinated Cocoa. Although this question is a little over a year old, it still might help.

尝试一下.

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