nice justin, i think it's a histogram analysis i'm thinking about a new index feature, like full text, but using mariadb, ideas are wellcome :)
for example select * from table where image_match(table_image_blob_field,"some other image, maybe using base64","histogram")>50 or others functions, the main feature is create a nice index to speed this features, i don't know if this exist or could be created, just checking what we have before planning something new some links related that we could use to 'search images': histogram/template/feature match: http://docs.opencv.org/doc/tutorials/imgproc/histograms/template_matching/template_matching.html http://docs.opencv.org/doc/tutorials/imgproc/histograms/histogram_comparison/histogram_comparison.html http://docs.opencv.org/doc/tutorials/features2d/feature_flann_matcher/feature_flann_matcher.html barcode: http://zbar.sourceforge.net/ exif (image meta data) http://pt.wikipedia.org/wiki/Exchangeable_image_file_format (exif information) and others algorithms, search faces, thumb, hands, eyes, etc 2014-08-05 17:34 GMT-03:00 Justin Swanhart <greenl...@gmail.com>: > Hi, > > I wrote software to do something like this a long time ago, when I worked > at a usenet provider an we needed to track spam images. I broke each image > down into smaller square images, and downsampled each to 8 bit, then > calculated a "color average" of all the pixels in each sample. If one image > matched enough samples to another image they were considered the same. > > It didn't work for what i needed though, because it would find similar > images (a person moved an arm, but everything else was the same for > example). Unfortunately, I don't have the source available. > > > On Tue, Aug 5, 2014 at 11:40 AM, Roberto Spadim <robe...@spadim.com.br> > wrote: > >> hi guys, does anyone know anything about querying images? >> for example, i have a database with images files (.jpg for example), and >> i have another image (for example my gmail picture), i want to search >> images similar or "near" to my image >> >> some points that i'm thinking about... images have many data, including >> meta data, maybe not only querying images (faces for example) but search a >> barcode or a ocr text, and many others features (i know some features when >> i worked with some opencv projects) >> >> ideas and informations and experiences are wellcome :) >> >> -- >> Roberto Spadim >> >> _______________________________________________ >> Mailing list: https://launchpad.net/~maria-discuss >> Post to : maria-discuss@lists.launchpad.net >> Unsubscribe : https://launchpad.net/~maria-discuss >> More help : https://help.launchpad.net/ListHelp >> >> > -- Roberto Spadim SPAEmpresarial Eng. Automação e Controle
_______________________________________________ Mailing list: https://launchpad.net/~maria-discuss Post to : maria-discuss@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-discuss More help : https://help.launchpad.net/ListHelp
