在不影响可用性的情况下向图像添加任意数据 [英] Adding arbitrary data to an image without affecting usability

问题描述

我想在图像中包含有关图像的某些信息。我认为这个要求与元数据（我认为谈论特定信息，如作者，采取日期等）不同。我想要包含的信息可能是一些随机字节。在任何标准图像查看器中，图像仍应可见。我不想隐藏字节（我不想寻找隐写术）。我只想要我可以从我自己的应用程序（比如基于Java）访问这些字节并使用/修改它们。

I want to include certain information about an image in the image itself. The requirement, i think, is different from the meta data (which i think talks about specific information such as author, date taken etc). The information i want to include may be some random bytes. The image should be still viewable in any standard image viewer. I dont want to "hide" the bytes (m not looking for steganography). I merely want that i can access these bytes from my own application (say Java based) and use / modify the same.

推荐答案

EXIF和XMP都允许您添加任意数据以及您想要的任何数据。您可能希望将二进制数据编码为ASCII，但这很简单。

Both EXIF and XMP allow you to add arbitrary tags with whatever data you want. You may want to encode your binary data into ASCII, but that's trivial.

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