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The Digital Photography Workflow Handbook by Uwe Steinmueller, Juergen Gulbins

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Metadata

Metadata describes other data and, in the case of digital images, provides additional information for each photo. Image metadata is either embedded in the image file itself or is stored separately in a file or a database. RAW, TIFF, and JPEG files contain various types of metadata:

  • File Properties

  • EXIF data

  • IPTC data

  • Additional metadata, such as RAW editing settings stored in an XMP file or image classification data stored in a database

File Properties •. File systems store metadata for every file that includes the filename, file type and size, access rights, and creation and last access dates. In a digital camera, this data is saved by the camera and is updated either by the computer’s operating system, a RAW editor, or other applications. ...

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