如何从jpeg中获取EXIF数据? [英] How to get EXIF data from my jpegs?

问题描述

我必须将日期和名称链接到捆绑包中包含的某些jpeg，或者可能要从我自己的服务器下载到Documents文件夹.有没有一种方法可以轻松提取EXIF数据?

I have to link a date and a name to some jpegs that I am including in my bundle, or possibly downloading from my own server to the Documents folder. Is there a way to extract EXIF data easily?

如果是这样，那么我将使用EXIF来存储此信息.如果没有，那么我将不得不创建一个数据库或平面文件，将我的额外数据映射到图像文件.

If so, then I will use EXIF to store this info. If not, then I will have to create a database or flat file that maps my extra data to the image file.

请记住，这些不是iPhone拍摄的照片，而是通过UIImagePicker或从沙箱外部提供的照片.这些是我随附在应用程序中的照片，也可以是我自己下载到Docs文件夹中的照片.这里的重点是轻松:

Keep in mind, these are not photos the iPhone has taken and is providing via UIImagePicker or from outside the sandbox. These are photos that I am including with the app or downloadig to the Docs folder myself. The important point here is ease:

更容易

• 从我的图像文件中读取EXIF文件
• 还有另一个文件可以跟踪 图像文件和相关文件 数据(可以是sqlite)

• read EXIF file from my image files
• have another file that keeps track of the image file and the associated data (could be sqlite)

谢谢！

推荐答案

您可以尝试使用 iphone-exif工具包提取数据.但是，它是经过许可的GPL，如果您的应用是商业应用，则需要协商许可协议.如果那不可行，那么您可能要走外部元数据路线.

You can try using iphone-exif toolkit to extract the data. However, it's licensed GPL and if your app is commercial you'll need to negotiate a license deal. If that's not viable then you may want to go the external meta-data route.

这篇关于如何从jpeg中获取EXIF数据?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！