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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

El servidor JPEG2000 requiere:

  • Microsoft Windows Server 2000 o 2003, Linux, o Sun Solaris 9 o superior.
  • Servidor del Web dedicado (IIS con Windows, Apache con UNIX).
  • Procesador 32-bit x86 (procesador Intel® Pentium® 4 compatible o superior).
  • 512 MB de RAM como mínimo. Se recomienda 1 GB o más de RAM.
  • Espacio de disco suficiente para mantener su colección.

Nota: CONTENTdm puede coexistir en sistemas con otros sitios y aplicaciones Web, y de hecho lo hace. El servidor JPEG2000 tiene su propia instancia de servidor Web (IIS o Apache).

JPEG2000 Acquisition Station

La estación de adquisición JPEG2000 requiere:

  • Microsoft Windows 2000 Professional o Windows XP.
  • 32-bit x86 processor (Intel® Pentium® 4 class compatible processor or higher).
  • Microsoft Internet Explorer 6.0 o posterior.
  • 256 MB de RAM como mínimo.
  • 100 MB de espacio de disco duro disponible para la instalación.
  • Resolución mínima de despliegue de 1024 × 768.
  • Conexión de 128 Kbps o más rápida.
  • Acrobat Reader 7.0 o posterior.

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.