There are several categories of interMedia new features
in Oracle Database 10g including:
A new image interface that complies with an emerging SQL
standard.
Native support for new media formats.
Support for new image processing operators.
New and updated demonstration code.
SQL/MM Still Image Standard Now Supported
In addition to the image support offered via the ORDImage
object type, in this version Oracle interMedia provides support for
the first edition of the ISO/IEC 13249-5:2001 SQL/MM Part 5: Still Image Standard.
This standard defines object relational types for images and image characteristics.
Each object type includes attributes, methods, and associated SQL functions
and procedures. Note that the SQL/MM standard does not provide support for all
the features currently offered by the ORDImage object type. Use of the SQL standard
interface may make some applications more portable across various vendor databases.
For a list of differences, please refer to "Oracle interMedia Reference".
The following object types are defined by SQL/MM Still Image.
SI_StillImageholds digital images with inherent
image characteristics such as height, width, format, etc.
SI_AverageColordescribes the average color feature
of an image.
SI_Colorencapsulates color values of a digitized
image.
SI_ColorHistogramdescribes the relative frequencies
of the colors exhibited by samples of an image.
SI_PositionalColordescribes the positional color
feature of an image.
SI_Texturedescribes the texture feature of the image.
SI_FeatureListdescribes an image that is represented
by a composite feature based upon up to four basic image features and their
associated feature weights.
See the "Oracle interMedia Reference" for
detailed information on SQL/MM Still Image support.
New Formats Supported
Oracle interMedia now supports the MPEG2 and MPEG4
file formats. The ORDVideo and ORDDoc object types now support the setProperties()
method for extracting metadata information from MPEG2 video streams. The ORDVideo,
ORDAudio, and ORDDoc object types now support the setProperties() method for
extracting metadata from MPEG4 (.MP4) files.
Oracle interMedia now supports the ASF file format
for ORDAudio, ORDVideo and ORDDoc objects. Windows Media files from Microsoft
(.WMV, .WMA and .ASF) use the ASF file format. With this feature, the setProperties()
method can extract metadata from ASF files.Ê This feature is available only
through a separate download from the interMedia section of the Oracle
Technology Network (http://otn.oracle.com/products/intermedia).
After downloading the component, consult the accompanying
README file for instructions on configuration and use.
Image Processing Improvements
Oracle 10g Release 1 incorporates JAI 1.1.1_02. ORDImage
methods can take advantage of the performance improvements and new functionality
provided with this version of JAI
New processing verbs have been added to the ORDImage process()
and processCopy() methods:
Contrastadjusts contrast by upper/lower bounds or
percentage.
Flipscan lines are swapped from top to bottom.
Gammacorrects the brightness of an image.
Mirrorswaps pixel columns from left to right.
Pageallows page selection from a multi page input image (TIFF only).
Quantizeindicates how any resulting reduction in
number of colors will be performed when changing the bit depth of an image
via the contentFormat verb.
Rotaterotates an image within the image plane by
the angle specified.
See "Oracle interMedia Reference" for more
information on these new image processing verbs.
New Oracle interMedia Java Demo Provided
The earlier OrdImage, OrdAudio, OrdVideo, and OrdDoc Java
demos have been replaced with a single new Oracle interMedia Java Demo
that illustrates the use of the Oracle interMedia Java Classes for Image, Audio, and Video data using the Sample
Schema.
See the demo README.txt file for more information:
<ORACLE_HOME>/ord/im/demo/java/README.txt
(on UNIX)
<ORACLE_HOME>\ord\im\demo\java\README.txt
(on Windows)
Photo Album Demos Have Been Updated
A new Oracle interMedia ASP/VBScript Photo Album
Demo has been added to illustrate how to upload and retrieve media data with
an ASP/VBScript application.
The Oracle interMedia Photo Album Demos have been
unified to ensure that they all have similar functionality. This makes it easier
to compare the various mechanisms for Web access to Oracle interMedia
data.
In addition, the Photo Album Demos have been enhanced to
make them accessible with good usability to the disabled community. Features
have been added to make the Demos available to users of assistive technology
such as screen readers.
See the "Oracle interMedia User's Guide"
for more information on Photo Album Demos.