CoreEventListener + service to build 64bits semantic hash of documents with
picture content
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Key: NXSEM-9
URL: http://jira.nuxeo.org/browse/NXSEM-9
Project: Nuxeo Semantic R&D
Issue Type: Task
Reporter: Olivier Grisel
Assignee: Olivier Grisel
Same feature as NXSEM-8 but for picture content. Instead of using TF-IDF
features we can use normalized gray level pixel values of a scaled down
(300x300 or 500x500) version of the picture or leveraging a smarter features
extraction layer based on SIFT [1] using the libsiftfast [2] library.
The goal is to be able to lookup related pictures in DAM (right click + "find
more pictures like this one") or to perform picture query by example.
[1]
http://homepages.inf.ed.ac.uk/rbf/CVonline/LOCAL_COPIES/AV0405/MURRAY/SIFT.html
[2] http://sourceforge.net/projects/libsift/
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