]
Johnny Verhaeg commented on DNA-26:
-----------------------------------
I will be adding the 2.4.0 beta1 version of the metadata-extractor library to the JBoss
repository since it's a dependency of Aperture, which I need to add to the repository
as part DNA-126.
Extract EXIF metadata from JPEG files
-------------------------------------
Key: DNA-26
URL:
http://jira.jboss.com/jira/browse/DNA-26
Project: DNA
Issue Type: Feature Request
Components: Sequencers
Reporter: Randall Hauch
Priority: Optional
Fix For: Future Releases
The image sequencer extracts basic metadata from PNG, BMP, JPEG, GIF and other image
files. Enhance this sequencer to extract EXIF metadata for JPEG files.
Drew Noake's metadata extractor (
http://www.drewnoakes.com/code/exif/index.html)
seems to be a widely used library for extracting EXIF metadata, and has support for a
number of cameras. This library does not appear to be in a any of the Maven 2
repositories, and Drew does not specify the Maven coordinates. The package structure is
"com.drew.*", but Aduna has it in its Maven 2 repository
(
http://repository.aduna-software.org/maven2/com/drewnoakes/metadata-extra...) under
"com.drewnoakes" (which is Drew's domain).
The EXIF metadata is organized as tags under directories. See a sample output of EXIF
metadata at
http://www.drewnoakes.com/code/exif/sampleOutput.html. This could be mapped
to JCR by having a child node (of type "exif:directory") named for each
directory (e.g., "EXIF"). Should the tags be stored as properties on each
directory node (not a great mapping from the tag names to property names, and not really
very extensible but probably easier to use), or as child nodes (of type
"exit:tag" ?) with properties for the tag name, hex value, and description
(value)?
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