如何向图像添加元数据？ [英] How can I add metadata to an image?

问题描述

将元数据插入到图像文件中的位置以及标记的内容是什么？我想用php做这个。

Where does one insert meta data into and image file and what it the mark up to do so? i want to do this with php.

推荐答案

Php集成到图像中;）

Php integration into images ;)

http://bechtsoudis.com/archive/2011/09/08/php-code-into-jpeg-metadata-from-hide-to-unhide/index.html

JPEG，TIFF，PSD，Raw和其他几种文件格式可以包括以下任何或所有标准类型的元数据：

JPEG, TIFF, PSD, Raw and several other file formats can include any or all the following standard types of metadata:

IPTC- IIM
通常称为遗留IPTC，这种模式是在20世纪90年代初开发的，主要是为了帮助新闻机构为早期数字图像提供字幕。它的主要优点是大多数图像编辑和管理程序可以读写其广泛兼容的字段。

IPTC-IIM Often called "legacy" IPTC, this schema was developed in the early 1990s, primarily to aid news organizations in captioning early digital images. Its primary advantage is that most image editing and management programs can read and write its widely compatible fields.

IPTC Core& Extension
这个较新的模式建立在IIM遗留的基础上，增加了更多类型的描述和管理信息，包括新的字段，以满足股票摄影和文化遗产社区的需求，以更强大的数据格式打包，XMP 。

IPTC Core & Extension This newer schema builds on the legacy of IIM by adding more types of descriptive and administrative information, including new fields to accommodate the needs of the stock photography and cultural heritage communities, packaged in a more robust data format, "XMP."

PLUS
用于识别和定义图像使用许可证的图片许可通用系统，描述了用于生成可识别字符串的模式和工具。版权所有者，用户，范围和许可图像使用条款。

PLUS The Picture Licensing Universal System for identifying and defining image-use licenses, describes a schema and tools for generating a string of characters that can identify a copyright holder, user, scope and terms of a licensed image use.

XMP
这是IPTC Core和Extension用于存储和更新的数据格式访问图像元数据。它支持在图像文件或附带的sidecar文件中存储元数据，并允许创建自定义元数据字段。

XMP This is the newer data format used by IPTC Core and Extension for storing and accessing image metadata. It enables metadata storage within an image file or in an accompanying sidecar file, and it permits creation of custom metadata fields.

Exif
这些元数据，通常由相机和其他捕捉设备，包括有关图像及其捕捉方法的技术信息，如曝光设置，拍摄时间，GPS位置信息和相机型号。

Exif These metadata, often created by cameras and other capture devices, include technical information about an image and its capture method, such as exposure settings, capture time, GPS location information and camera model.

Dublin Core
许多图像库和各种行业使用此模式存储包含图像文件的信息。它的一些领域可与IPTC格式互操作。

Dublin Core Many image libraries and a wide variety of industries store information with image files using this schema. Several of its fields are interoperable with IPTC formats.

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