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Re: quering images



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 <roberto@xxxxxxxxxxxxx>

> 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
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