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JPEG2000: displaying large formats

Use the CONTENTdm JPEG2000 Extension to create and display large format images. In the CONTENTdm workflow the JPEG2000 Extension enables collection builders to convert full resolution TIFF and JPEG files to JPEG2000 files during the import process. Existing JPEG2000 images can also be imported into CONTENTdm.

The CONTENTdm JPEG2000 Server supports dynamic decompression and display of JPEG2000 images for efficient viewing of large files without the need for browser plug-ins.

Images are presented to users in a standard Web browser with zoom and pan toolbar features. Users benefit from higher quality, detailed images without spending a lot of time waiting for large images to be transmitted. JPEG2000 is ideal for image archives, maps, drawings, medical images, and other large image formats requiring high compression efficiency and image quality.

A JPEG2000 image created from an uncompressed 407MB TIFF file displayed at 25% using zoom and pan features. The thumbnail image shows the context for the zoomed area.

A JPEG2000 image created from an uncompressed 407MB TIFF file displayed at 25% using zoom and pan features. The thumbnail image shows the context for the zoomed area.

What is JPEG2000?

For more information about JPEG2000, visit the Web site of the Joint Photographic Experts Group.

JPEG2000 is the latest in a series of standards from the JPEG committee. JPEG2000 provides exceptionally high quality images at low bit rates, overcoming many of the limitations of the original JPEG standard. The original JPEG standard was developed 15 years ago, but advances in technology and research have resulted in a new standard capable of doing much more than simply making digital image files as small as possible.

JPEG2000 system requirements

JPEG2000 Server

The JPEG2000 Server requires the following:

  • Microsoft Windows Server 2000 or 2003, Linux, or Sun Solaris 9 or higher
  • Dedicated Web server (IIS with Windows, Apache with UNIX)
  • 32-bit x86 processor (Intel® Pentium® 4 class compatible processor or higher)
  • Minimum 512MB RAM. Recommended 1GB+ RAM
  • Adequate disk space to hold your collection

Note: CONTENTdm can, and usually does, coexist on systems with other Web sites and applications. The JPEG2000 Server should have its own Web server (IIS or Apache) instance.

JPEG2000 Acquisition Station

The JPEG2000 Acquisition Station requires the following:

  • Microsoft Windows 2000 Professional or Windows XP
  • 32-bit x86 processor (Intel® Pentium® 4 class compatible processor or higher)
  • Microsoft Internet Explorer 6.0 or later
  • Minimum 256MB RAM
  • 100MB of available hard-disk space for installation
  • Minimum display resolution of 1024 x 768
  • 128 Kbps or faster connection
  • Acrobat Reader 7.0 or later

How is the JPEG2000 Extension distributed?

The JPEG2000 Extension can be added to any new or existing CONTENTdm Server and is included with the purchase of some CONTENTdm license levels. For JPEG2000 Extension pricing information, please contact contentdm@oclc.org.