my presentation handout


Brynna Cole

LS 566

April 2016

Technical Metadata for Digital Still Images
Originating from the Image Metadata Workshop in 1999, held by NISO (National Image Standards Organization), CLIR (Council on Library and Information Resources), and RLG (Research Libraries Group), the Technical Metadata for Digital Still Images schema was designed “to document image provenance and history (production metadata)” and “to ensure that image data will be rendered accurately on output (to screen, print, or film),” as well as aid in preservation.

The schema was influenced by the Digital Imaging Group’s DIG35 Working Group, the ISO Technical Committee 42 – Photography, and the Adobe Developers Association, and was spearheaded by Robin Dale and Günter Waibe as early as 2003.  The literature was produced around 2005-2006 and the standard was approved by NISO and ANSI in 2011.

Basic rundown:

  • This schema is meant to standardize digital image recording and thus “(allow) users to develop, exchange, and interpret” digital image files.  It refers to TIFF (Tagged Image File Format) usage often and interprets/meets the DIG235 metadata standard.
  • The Trial Use Period for this schema helped creators to learn that it would be used primarily in XML encoding
  • Standards are to be broadly applicable
  • No conflict should be found between metadata specified in the standard and file header metadata
  • Definitions are to be “included in the individual clauses describing each element”

Basic element names

  • Definition: definition in italics
  • Type: specification allowable data type(s)
  • Obligation: M = mandatory, MA = mandatory if applicable, R = recommended, O = optional
  • Repeatable: Y = yes, N = no
  • Values (examples): When data type = “enumerated type,” the values listed are actual values
    When data type = “string,” examples are provided
  • Notes: a comments field
  • Use: System, Manager, User

The schema can be used with many data types (containers and elements) and describes images on many, many detailed layers.  More information can be found here.


liveblogging presentations the sixth

  • Finding aids!   want to hear what Julie has to say, but I’m already on board with her thesis that they are important.
  • Okay, I’m sold.  EAD is non-proprietary but standardized and is incredibly useful.
  • Complexity suits me just fine!  I’m ready for this.
  • Corresponding schemas kind of set my heart aflutter.  I think that’s what I’m getting out of this.

liveblogging presentations the fifth

  • Embedded metadata in mp3 files!  I’ve tampered with these, too, because standard metadata in mp3 files is not… always specific enough for me.
  • “iTunes does not understand genre” said Liz in the chat.  That is exactly what I was just talking about.
  • Yes, Susie, we all remember the dial-up modem.  It’s not great.
  • This is one of the most useful metadata schemas in “real life” I think.  Non-library-people would relate to this.  That makes it particularly noteworthy.
  • Also I like that there is no controlling party for this, honestly.  I do.  I think for something as changeable as music this makes sense.
  • Because, yes, genre is subjective.  My genres end up being things like Gothic Rock/Cabaret/Steampunk or something ridiculous like that.  (I generally go by Wikipedia genre classifications for artists, if they’re available, and I enter them manually because it’s important to do.)

liveblogging presentations the fourth

  • IPTC Core.  News and stock photographs.  Boy howdy, have I spent some time tripping through stock photographs and may I just say the ways they’re invisibly tagged can be hilarious.
  • I also find it really interesting how so much of this ties into corporate, i.e. Adobe, standards.  There is something to be said for a company being so much in the lead with technologies that they can actually influence advancement.

liveblogging presentations the third

  • Barest level convenient metadata!  This seems to be a more basic level of the metadata schema I’m going to be presenting on.
  • I also like the commentary about programming devices much more in-depth on television.  It still to this day drives me insane when people on television receive a phone call from someone like Pizza Hut or a hotel or someone they have never spoken to and it’s perfectly programmed in.  That’s not how it works.
  • This seems seriously useful and like something most people take for granted.

liveblogging presentations the second

  • We haven’t discussed films being archived in any detail yet. Hm.
  • I like that this collection is a response to public desire, not just intellectual curiosity.
  • I really like that this archive offers multiple formats for records, too.  That seems useful and also, honestly, like it would be sort of fun to put together.