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Image Tagging
Image Tagging
Image Tagging
Image Tagging
Image Tagging
Image Tagging
Image Tagging
Image Tagging
Image Tagging
Image Tagging
Image Tagging
Image Tagging
Image Tagging
Image Tagging
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Image Tagging

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  • 1. Photography in Education TECH2113 Dr. Alaa Sadik Department of Instructional & Learning Technologies www.alaasadik.net [email_address]
  • 2. Part 3 Editing & Enhancing Week 9 Image Tagging
  • 3. Image Tagging
    • Image tagging is embedding information about the image into the image file itself. The image can take the information with it wherever it goes. This information is called metadata.
  • 4. Image Tagging
    • By tagging an image you can embed a much broader and richer range of information into the image file, which could include anything from technical details, to copyright information, keywords, dates, full description and photographer details.
  • 5. Image Tagging
    • Traditionally this kind of information is stored with the image in a database, enabling you to search , retrieve and use images based on its metadata.
    • Practice: Tag some of the photos you have in your computer then search for images using the tags you just used.
  • 6. Image Tagging
    • Some photo editing programs are not “aware” of tags and just do not support them.
    • If an image is tagged, then it is important to find out what applications support the metadata format you use.
  • 7. Types of Tagging Formats
    • The most common formats at present are:
    • International Press Telecommunications Council format (IPTC)
      • This format is supported by Microsoft image viewers and file management system.
  • 8. Types of Tagging Formats
  • 9. Types of Tagging Formats
    • EXchangeable Image File format (EXIF)
      • EXIF was developed to enable digital still cameras to embed a range of technical camera data within an image file (such as height, width, date, time, orientation, camera make and resolution).
  • 10. Types of Tagging Formats
    • eXtensible Metadata Platform ( XMP)
      • Designed by Joint Photographic Experts Group (JPEG) committee's JPEG2000 (JP2).
      • This format is used by Adobe Photoshop 7 and later versions (via the File Info option in Photoshop).
  • 11. Identifying Metadata Needs
    • The following questions should be answered to determine what metadata you need to manage and use your photos:
    • What is the main objective behind the creation of the photo collection?
    • How is this collection will be hosted and managed?
    • What metadata do users need or expect?
  • 12. Identifying Metadata Needs
    • The following questions should be answered to determine what metadata you need to manage and use your photos:
    • What metadata do you need to manage the collection?
    • What are others with similar collections doing?
    • Are there any institutional, technological or legal demands I need to consider?
  • 13. Identifying Metadata Needs
    • The following questions should be answered to determine what metadata you need to manage and use your photos:
    • What metadata do you already have?
    • Who can contribute to the metadata?
    • How much time/money can you afford to spend on creating metadata?
  • 14. Discussions & Notes for - Mid-term exam results - Uploading and sharing photos using Flick r and Photo repository.

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