我正在做一个图像处理项目( C++), 在处理完成后我需要将自定义元数据写入 jpeg 文件 。 我如何才能做到这一点? 是否有图书馆可以这样做?
如果您在谈论 EXIF 元数据时, 您可能想要查看 < a href=" http://www. exiv2. org/" rel="nofollow" >exiv2 , 这是用于处理 EXIF 元数据的 C++ 库。 还有第二个 lib, 叫做 < a href=> http:// libexif. sourceforge. net/" rel="nofolf" >libexif , 以 C 写 。
Exiv2在其网站上有浏览实例,API有详细记录。
更新: 如果您想要添加自定义元数据, 您可以使用 < code> Makernote 或 < code> 标签Comment 。
Exif标准:PDF 见第4.6.5节,EXIF IF 属性信息表7,与用户信息有关的标签。
MakerNote Type Undefined Count Any
Comment Type Undefined Count Any
这意味着您可以使用这两个标记来获取任何您想要的数据 。
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