使用元数据创建jpeg文件 [英] Creating a jpeg file with metadata

问题描述

我有一个 Java 应用程序，可以创建 BufferedImage 并将其作为JPEG保存到磁盘。我真的想为图像添加一个标题。为了防止图像被图像本身的文本挤出，如果我可以将标题写入JPEG的元数据，那就太棒了。

I have a Java application that creates a BufferedImage and saves it to disk as a JPEG. I'd really like to add a caption to the image. To prevent the image from getting crowded out by text on the image itself, it'd be great if I could write the caption to the JPEG's metadata.

我一直在寻找解决方案，但没有找到任何令人满意的结果。 Sanselan出现了很多，但我还没弄明白如何正确使用它。我找到了修改现有元数据的示例，但我的文件不包含元数据，因为它们只是从ImageIO.write（）或Sanselan.writeImage（）创建的。

I've been searching all over the place for a solution, but haven't found anything satisfactory. Sanselan comes up a lot, but I haven't figured out how to use it properly. I found examples that modify existing metadata, but my files don't contain metadata as they are simply created from ImageIO.write() or Sanselan.writeImage().

I发现了另一个发布我做的事情我正在寻找，但它在C＃，我需要Java。

I found another post that does what I'm looking for, but it's in C# and I need Java.

任何帮助都将不胜感激。

Any help would be greatly appreciated.

推荐答案

您要查看的包是javax.imageio.metadata

the package you want to look at is javax.imageio.metadata

IIOMetaData类（具有JPEG的具体子类）包含以各种格式获取元数据信息的方法，包括作为XML DOM树根节点。

The IIOMetaData class (which has a concrete subclass for JPEG) contains methods to get metadata information in various formats, including as an XML DOM tree root node.

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