{"id":426,"date":"2019-06-28T16:46:30","date_gmt":"2019-06-28T16:46:30","guid":{"rendered":"https:\/\/lunarship.com\/manual\/?page_id=426"},"modified":"2021-03-27T12:49:22","modified_gmt":"2021-03-27T12:49:22","slug":"work-with-metadata","status":"publish","type":"page","link":"https:\/\/lunarship.com\/manual\/work-with-metadata\/","title":{"rendered":"Work with metadata"},"content":{"rendered":"\n

Metadata is a cornerstone of a terrific photo library. Metadata describes the condition of a shot and contains a lot of information about the photo. Taking the correct approach to metadata is the key to success with photo management and organization. <\/p>\n\n\n\n

The rule of thumb for metadata is: \u201cThe more, the better.\u201d The more\nmetadata you have, the more metadata you create, and the better the photo\nlibrary becomes. Use descriptions and keywords to describe Events, Albums, and\nphotos.<\/p>\n\n\n\n

Phototheca works intensively with metadata. In order to help you understand\nhow, first you need to understand what metadata is. <\/p>\n\n\n\n

The entire set of metadata you have with all your photos can be divided\ninto two parts: <\/p>\n\n\n\n

  1. Read-only metadata<\/li>
  2. User-edited metadata<\/li><\/ol>\n\n\n\n

    Read-only metadata<\/h2>\n\n\n\n

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    This is what is called EXIF metadata. This metadata is generated by a\ncamera and is written into each JPEG or RAW file directly, at the moment the\nfile is generated inside the camera. <\/p>\n\n\n\n

    EXIF metadata contains a huge amount of useful details about the conditions\nof a shot and the camera, for instance: light conditions, aperture and focus,\nshutter speed, ISO number, location of the camera, altitude (height above sea\nlevel), direction, camera model, lens model, color space, etc. It\u2019s difficult\nto overestimate the value of this data.<\/p>\n<\/div><\/div>\n\n\n\n

    Phototheca completely supports all standard EXIF data of JPEG and RAW files. Phototheca is able to read, decode and display all this data whenever a photo contains it. <\/p>\n\n\n\n

    Phototheca supports search functionality over part of this metadata with the Smart Album feature. <\/p>\n\n\n\n

    User-edited metadata<\/h2>\n\n\n\n
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    Besides read-only metadata(EXIF), the JPEG format supports pieces of\nmetadata that can be changed and overwritten by a user. They are the XMP and\nIPTC sections of the JPEG file. <\/p>\n\n\n\n

    Phototheca supports read-from and write-to the XMP and IPTC portions of\nmetadata. <\/p>\n\n\n\n

    XMP and IPTC metadata is used to add descriptive information to an image,\nfor instance: description, keywords, author, rating, copyright, address, etc.<\/p>\n\n\n\n

    Phototheca reads and supports modification of the following XMP\/IPTC\nfields:<\/p>\n\n\n\n