Interesting uses of photos on Flickr

I've recently come across a couple of clever uses of photographs from Flickr, which makes me want to learn how to use the Flickr API, which I hear is quite straight-forward.

The first example uses ‘Flickr as a paintbrush‘, which means colouring a map of an area using the average colour (actually, the average hue), of photos taken at different points on that map (which requires photos to be geotagged).

The second example, is similar, only much more complex. It also uses information from geotagged photos, but it attempts to recreate an entire 3D model of a city using those photos. This is a hugely complex computational problem and yet it’s what we do when we see someone’s holiday snaps (though to be fair, I doubt many people could imagine the entire layout of a city just by looking at millions of photos).

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