San Diego Philly Twitter
||San Diego, Philadelphia
||time, brightness, hue
||Socioeconomics and Tweeted Images
These are two image histograms, side by side for comparison. Both are 1,000 images sampled over a year, binned by time (one bin for each hour in a week). Each "cone" is thus a day of the week. The histograms are also sorted vertically by brightness and hue. On the left is San Diego, on the right Philadelphia. This plot revealed to us that Philly has an unusual amount of bright cartoon images. An interesting observation we could not have made without direct visualization; with it, the observation is trivially easy.