Glossary

codecs

Digital compression and decompression schemes.

content metadata

Data that describes the content of image media, such as the name of the photographer, and the date and time when a photograph was taken.

embedded metadata

Metadata that is stored with image data in the image file format.

image interchange format

A well-defined organization and use of image attributes, data, and often compression schemes that allows different applications to create, exchange, and use images. Interchange formats are often stored as disk files.

image metadata format

Standard protocols and techniques used to store image metadata within an image file. Formats include: EXIF, IPTC-IIM, and XMP.

Java servlets

Java classes that dynamically process HTTP requests and construct HTTP responses.

JavaServer Pages (JSP)

See JSP.

JSP

JavaServer Pages, Java text-based documents that execute as Java servlets, but which allow a more natural approach to creating static content than using servlets.

lossless compression schemes

Compression schemes that squeeze an image so that when it is decompressed, the resulting image is bit-for-bit identical with the original.

lossy compression schemes

Compression schemes that do not result in an identical image when decompressed, but rather, one in which the changes may be imperceptible to the human eye. Lossy schemes generally provide higher compression than lossless compression schemes.

media data

Data from audio, image, video, or heterogeneous media.

metadata

Information about media data, such as object length, compression type, or format.

methods

Procedures that can be performed on objects, such as getContent( ) or setProperties( ).

Oracle interMedia

In Oracle Database 11g Release 1 (11.1), the name Oracle interMedia has been changed to Oracle Multimedia.

ORDAudio

Object relational type for audio data characteristics.

ORDDoc

Object relational type for heterogeneous data characteristics.

ORDImage

Object relational type for image data characteristics.

ORDSource

Object relational type that stores data source information for audio, heterogeneous, image, and video data characteristics.

ORDVideo

Object relational type for video data characteristics.

portlets

Summarized versions of applications and Web content situated in defined regions of a Web page that are accessible through enterprise portals.

protocols

Image interchange formats exchanged in a sequential fashion over a network.

technical metadata

Data that describes image media in a technical sense, such as the height and width of an image, in pixels, or the type of compression used to store the image.